Forestalinews on "[Plugin: W3 Total Cache] Problem enabling "page cache""

Hi i have a problem with the setting of w3 total cache in my blogs.
When the options "page cache" is not enable the site is OK, but when i enable it the site go down.
Can you help me in set the settings?
How can i resolve this problem?

https://wordpress.org/plugins/w3-total-cache/