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Latest Version – Cannot Access WP Dashboard while Active

August 28, 2020, 3:39 am
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Replies: 2

Hi,
I’m having a major problem with the latest update. In short, I can’t access my admin panel, or anything on the back end when W3 is activated. The front end seems OK.

When I try to get to the admin panel, I can log in, but after that I get a message:

“There has been a critical error on your website. Please check your site admin email inbox for instructions.

Learn more about debugging in WordPress.”

The email I received says:

“Howdy!

Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, W3 Total Cache.”

For now I have disabled W3 through FTP. I can access everything normally when I do that.

What I’ve tried:

– I’ve tried reinstalling W3, but the same thing happens.

– I’ve tried to rollback to a previous version, but I can’t get that option with the Rollback plugin, but it says there’s no previous versions:
“It appears there are no version to select. This is likely due to the plugin author not using tags for their versions and only committing new releases to the repository trunk.”
Though I think this might be because I have the plugin disabled by renaming it through my FTP? If that’s the case, then I have no way to try a previous version through the Rollback plugin.

Are there copies of older W3 versions I can download and install manually?

– My debug.log doesn’t show anything related to W3 or Cerber. I don’t see anything that looks like it’s related to the issue. But I’m no expert – I could be missing something.

What did I do when the error happened? (I guess that’s your main question.)

I received an email from my Cerber security plugin saying there were multiple lockouts recently and it gave the IP address of the last lockout. It then gave a link to “view activity for this IP Address”. I clicked it and that’s when everything fell apart. Shortly after, I got the email I mentioned above about my site experiencing a technical issue.

For the record, I disabled Cerber and enabled W3 and the problem was still there. I tried rolling back Cerber to a previous version and enabling W3, but that didn’t help.

The specific error from the wordpress email says it was caught here:
https://outrecording.com/xxxxxxxxxxx/xxxxxxx/admin.php?page=cerber-security&tab=activity&filter_ip=144.76.186.38

That’s the link I clicked right before the problem started. It just takes you to Cerber’s Activity tab of the plugin.

Thanks for any help you can provide. I hope I didn’t write too much or confuse. Please let me know if you need any clarification or additional info.

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Malware?

August 28, 2020, 5:56 am
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Replies: 3

Hello to anyone,
my host provider informed me with this message:

Hello,

ImunifyAV scanned your websites automatically for malware. At least one of them is infected and needs your action:

reteinformatica.biz 1 file infetto
/wp-content/plugins/w3-total-cache/inc/lightbox/support_us.php

negozio.reteinformatica.biz 1 file infetto /wp-content/plugins/w3-total-cache/inc/lightbox/support_us.php

Remove the malware with one-click

Best regards,
Plesk and ImunifyAV Teams

Same thing with another site I have with other domain.

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Price & currency based on Geo location

August 28, 2020, 9:11 am
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Replies: 2

Hi, thanks for this awesome plugin. I am having one issue. I want to show the price and currency based on geo-location but now price is appearing for all users based on the location of the first user after purging all caches. Any help would be really appreciated. Thanks.

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Opcode: Accelerators

August 29, 2020, 6:45 am
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Replies: 0

Hi,

Would love to get some explanation on selection and use of PHP accelerators

I run my websites off VPS. My server runs Linux, Apache and PHP 7.3 with Zend Opcache support.
Going through settings of W3 cache, following options for Accelerators are presented (but greyed out):
APC
eAccelerator
XCache
WinCache

APC and eAccelerator are no longer supported as of PHP 5.5, WinCache is not applicable to Linux. Same for Database cache and Object cache (more on object cache later).

Zend Opcache is not even an option (can only select it for Opcode caching). So, the only option I can really use for page cache is disk.

Now, for object cache. I tried to enable it with disk as the only option. In a day, it consumed 20G of disk space! I think there is a need for option where user can select maximum disk usage.

Rudolf

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Lazyload issue with Ajax on on Shop page

August 29, 2020, 9:56 am
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Replies: 0

Hi, am having issues on my Shop and product archive pages when I turn lazyload on. The Ajax loaded product images don’t show when you scroll down for more products on those pages.

I had found a similar problem on this forum, but the solution didn’t work for me. So how can I resolve this or maybe it could be a theme issue?

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W3TC causing fatal error on my site

August 29, 2020, 3:40 pm
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Replies: 0

Dear support team,

I started receiving emails by WordPress 3 days ago informing me that my site is experiencing technical issues caused by W3TC. The frontend looks ok, but unfortunately, I can’t log into the admin panel anymore (not even in recovery mode).

The error details:
An error of type E_ERROR was caused in line 452 of the file /home/……/plugins/w3-total-cache/Cache_File.php. Error message: Illegal length modifier specified ‘f’ in s[np]printf call

WordPress version 5.4.2
Current theme: Foodie Pro Theme (version 2.1.8)
Current plugin: W3 Total Cache (version 0.14.4)
PHP version 7.3.20

I’d highly appreciate it if you could give me some advice as to how I can move forward to recover my site (and work in the admin panel again).

Thanks a lot and best regards,
Ramona

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Virus?

August 30, 2020, 9:18 am
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Replies: 0

Hello. Unfortunately, my provider also sent a notification that a virus was detected.

wp-content/plugins/w3-total-cache/inc/lightbox/support_us.php

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W3 Total Cache Kills WooCommerce API

August 30, 2020, 11:56 pm
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Replies: 0

It seems that if I install and enable W3 Total Cache, it totally disables the WooCommerce API. If I disable page caching, it works again.

I have REST API set to don’t cache. I have tried adding /wc/w3/ and /wc/w3/* to the “Never” list and no change.

Any ideas?

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Everything Worked 100% but now some blocks are not showing up

August 31, 2020, 1:11 am
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Replies: 0

Hello,

For several years, we have used the W3 Total Cache plugin and have always been very happy with the plugin, which is also why we submitted a 5 Stars review for approx two years ago.

We have a new website where we also are using W3 Total Cache and Cloudflare. Last week we worked quite hard on the boosting and optimization of this website. Saturday lasts week we finalized it and was very happy with the final tests.

Today we test again and are even more pleased because this time, the result is even better. Unfortunately, our enjoyment didn’t last very long because we discover that the website now has some errors that not was there Saturday last week. Since Saturday last week, we have not done any work on the site, so we do not understand what has happened.
Starting over would be very bad as we got it so far. So we hope that W3 Total Cache support will be able to help us in fixing these errors.

The errors are:
1.
We have a video in the header which still is working at Firefox but not at Chrome and Microsoft Edge.

2.
Further down, we have two image blocks from Stackable – they are not showing up anymore.

3.
Then we have three fly-in Split Content block, which flies in one at the time. They are now gone.

4.
The last error is our Join our Newsletter module, which is showing up but not correct.

I hope you will be able to help us out.

Thank you and best regards,
Finn

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W3TC produces balnk pages on IIS

August 31, 2020, 9:48 am
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Replies: 1

Hi – delivering my site from IIS 7. I’d like to use this caching plugin as it appears to be the only one to accommodate IIS specific setting (e.g. WinCache etc).

However, I get some really strange behaviours with its vanilla settings. Following scenario:

I clear the browser cache. I then try to navigate to a page: I get a blank page with the first page load. If I press F5, it then loads instantaneously. Furthermore, once I’ve gone through this, all pages then load fine (on second loading). Also, if I navigate from a ‘working’ (I assume cached) to another ‘non-working’ page then I’m frozen on the original page for a while (i.e. gifs freeze) – then it goes blank.

As I say – these are with vanilla settings. IIS/PHP all set up as you’d expect.

I’d be grateful if you could advise.

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777 permissions in cache

August 31, 2020, 11:23 pm
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Replies: 2

Your plugin seems to create files in cache that have 777 permissions. Is there any way to make this more secure, such as 775?

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Loading CSS file error

September 1, 2020, 12:20 am
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Replies: 2

Hi, I am consistently getting an error on my site after installing your plugin. I created a modular theme where each component e.g. header, includes its own minified CSS file, see function blow in my funcions.php file.

//Render inline css in component
function renderInlineCss($folder, $component){
$dest = get_stylesheet_directory_uri() . ‘/’.$folder.’/’. $component .’/’. $component .’.min.css’;
$css = file_get_contents($dest);
$css = ‘<style>’ . $css . ‘</style>’;
return $css;
}

It’s this function that causes the error and certain parts of the site now can’t find there corresponding CSS files. Everything seems fine when I purge the cache but when I come back to the site I see the errors again. They aren’t consistent and they can be on different pages of the site each time.

I have turned off all minify settings and checked to make sure all other cacheing is remove apart from your plugin.

Cheers,
Tom

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W3 Total Cache – RankMath Sitemap – Elementor Issue

September 1, 2020, 1:38 am
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Replies: 2

Hi Marko,

I’ve been having an issue with my sitemap generated by rankmath as every time I edit anything with elementor (even if I don’t update) my sitemap collapses into a 404 page and I have to flush it again by saving permalinks settings and rankmath sitemap settings.

In addition, I have included the following settings:

/.*sitemap.*
/*sitemap.*
sitemap(_index)?\.xml(\.gz)?
[a-z0-9_\-]*sitemap[a-z0-9_\-]*\.(xml|xsl|html)(\.gz)?

into my “Never cache the following pages”, “Never minify the following pages” and in the “404 exception list” settings of W3 Total cache plugin.

In addition, I also created a page rule with the set up of “Cache: bypass” in CloudFlare CDN as mywebsite/*sitemap*

Finally, I also turned off the AMP caching in the AMP for WP plugin settings; however, the issue persists

PS. I have been trying to find a solution with the rankmath support in this ticket
https://support.rankmath.com/ticket/sitemap-keeps-disappearing-after-a-couple-minutes/

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I need a refund

September 1, 2020, 1:52 am
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Replies: 2

I paid for the pro version only to use the “Eliminate Render Blocking resources” feature, which is the only thing slowing down my site on Pagespeed.

I use defer before head in the JS Minify settings, as seen here: https://wpvivid.com/eliminate-render-blocking-javascript-css.html

But after toggling on the Eliminate Render and move to http body feature, and waiting for 24 hours now, the issue is still there.

I also noticed my “initial server response time” literally doubled after upgrading to pro. From 0.6s to 1.1s.

Also in the remove unused CSS, this “/*<![CDATA[*/.mx_image_background{background-color:#f2f2f2} …” started showing after paying for the Pro version.

My point is the Pro version slowed than my site even more, from 85 on mobile to 79. I practically paid for my site to be slower? Please I need a refund. Thanks.

  • This topic was modified 3 hours, 8 minutes ago by mrhnaub.
  • This topic was modified 3 hours, 6 minutes ago by mrhnaub.
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How to purge posts cache in Bulk!

September 1, 2020, 9:06 am
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Replies: 1

Hi, I know we can purge cache of individual post by going to each posts but is there any option to tick the selected posts and apply bulk action to purge cache of those posts in bulk, like we do bulk “move to trash” by ticking posts and applying filter.

Or if i have the list of specific URLs and we paste it in there and purge the cache by clicking a button like we do in cloudflare.

Any help would be much appreciated.

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Probleme durch W3 Total Cache

September 2, 2020, 2:37 am
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Replies: 1

Hallo, ich hatte meine Homepage (divi theme, woocommerce) mit dem WP Optimizer optimiert, alles lief sehr gut.
Da ich auch das W3 Total Cache installiert hatte, wollte ich vorgestern das W3 Total Cache deinstallieren. So habe ich es im Backend unter Plugins deaktiviert und deinstalliert. Plötzlich rief es folgende Probleme im Backend auf:

(Es waren 4 Fehlermeldungen, die erste Angabe fehlt leider)

www/htdocs/…
Cannot modify header information – headers already sent by (output started at …/www/htdocs/…./…/wp-content/object-cache.php:18) in www/htdocs/…/functions php on line 6…

www/htdocs/…
Cannot modify header information – headers already sent by (output started at /www/htdocs/…./…/wp-content/object-cache.php:18) in /htdocs/…/wp-admin/admin

www/htdocs/…
Cannot modify header information – headers already sent by (output started at /www/htdocs/…./…/wp-content/object-cache.php:18) in
www/htdocs/…/ misc.php/1..

Ich konnte nicht mehr interagieren, so habe ich ein Backup von UpdraftPlus eingespielt, was aber fehlgeschlagen ist.

Dann bin ich durch eine Internetsuche darauf gekommen, dass man einige Daten aus dem FTP rauslöschen soll, ich habe folgende im FTP gefunden und gelöscht: cache, et-cache & et-cache-old, dann kam ich wieder endlich wieder ins Backend meiner Seite.

ABER! Ich hatte plötzlich “Flash of unstyled contend” (FOUC) auf meiner Seite. Außerdem konnte ich meine Seite über den Visuellen Builder von Divi elegantthemes nicht mehr bearbeiten.

Ich wendete mich an den Hoster, dieser spielte eine frühere Version meiner Homepage ein. Diese wurde sichtlich zurückgestellt, aber leider verblieb das Problem mit dem FOUC und dem Visuellen Builder. Trotz leeren der Caches und löschen des Browsers, oder Inkognito Modus.

Heute habe ich bei W3 Total Cache alles einzeln und dann nochmal im Backend das Plugin deaktiviert. Ich kann zwar wieder in den Visuellen Builder meines Divi-Themes, aber das FOUC ist noch da.

Woran kann es liegen? Was soll ich jetzt tun? Ich bitte um Hilfe, Danke!

Liebe Grüße!

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Cache SSL (https) requests?

September 2, 2020, 10:35 am
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Replies: 0

If the site uses https, should this feature be enabled?
Kinsta recommends not enabling this option.

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Invalid inline script & Invalid attribute: emoji-amp problem

September 2, 2020, 12:32 pm
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Replies: 0

when i add photos in the article say problem with amp

Invalid inline script

Information
AMP does not allow the use of JS <script> tags unless they are for loading AMP components, which are added automatically by the AMP plugin. For any page to be served as AMP, all invalid script tags must be removed from the page. Instead of custom or third-party JS, please consider using AMP components and functionality such as amp-bind and actions and events (as opposed to JS event handler attributes like onclick). Some custom JS can be added if encapsulated in the amp-script. Learn more about how AMP works.

If all invalid markup is “removed” the page will be served as AMP. However, the impact that the removal has on the page must be assessed to determine if the result is acceptable. If any invalid markup is “kept” then the page will not be served as AMP.

Error code
DISALLOWED_TAG
Invalid markup
<script … >
Element attributes
type text/javascript
Element name
script
Parent element
head

—————–

Invalid attribute: emoji-amp

Information
AMP allows a specific set of elements and attributes on valid AMP pages. Learn about the AMP HTML specification. If an element or attribute is not allowed in AMP, it must be removed for the page to be cached and eligible for prerendering.

If all invalid markup is “removed” the page will be served as AMP. However, the impact that the removal has on the page must be assessed to determine if the result is acceptable. If any invalid markup is “kept” then the page will not be served as AMP.

Error code
DISALLOWED_ATTR
Invalid markup
<html … emoji-amp=”” …>
Element attributes
emoji-amp
lang en-US
amp
data-ampdevmode
Attribute name
emoji-amp
Parent element
html

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Error 404 minify files

September 2, 2020, 3:32 pm
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Replies: 0

Hello,

I’m having an issue with the minify files. They are not being created in the cache folder, returning the 404 error message.

Previously it was working, but when I reinstalled the apache and updated the PHP to 7.3, the error started to appear.

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Parameter must be an array or an object that implements Countable- W3-total-cach

September 3, 2020, 12:04 am
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Replies: 0

Hi,
We are using Bitnami WordPress server with WP 5.5, and PHP 7.4.7 (released in JULY 2020)
Currently, we are seeing many warnings/errors as below (Proxy fcgi error) in our Bitnami Apache error logs.
We want to know the reason we are getting this warning/error, as the plugin is working as it should in the WordPress website.
Below is the error-

[proxy_fcgi:error] [pid 31391:tid 140133433075456] [client XXXXX:47506] AH01071: Got error ‘PHP message: PHP Warning: count(): Parameter must be an array or an object that implements Countable in /opt/bitnami/apps/XXX/wp-content/plugins/w3-total-cache/Cdn_Plugin.php on line 1174’

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