W.P. Ginfo on "[Plugin: W3 Total Cache] I can not login to the wordpress control panel."

Ramon,

1. Use FTP to access your site
   bv. http://filezilla-project.org/download.php
2. rename all plugins by putting a '0' in front of each plugin -folder;
   ../wp-content/plugins
3. Check if the access has been restored
4. If so: one-by-one, remove the '0', checking every time to see if the problem re-occurs.
5. when the problem re-occurs, you've found the source of the problem; Delete and find a working replacement.
6. alternatively: FTP:Delete; Then download and install / activate a NEW version and see if this works.