Thanks to "Jan Dembowski" i am able to post a new topic about an issue i am experiencing.
After following the guide of this plugin by adding user agents from the list into Total Cache the Internal Server Error kept coming back. To keep the website online i upload my old copy of my .htaccess file, but i can;t flush my Cache anymore, because each time i do that it brings the Internal Server Error back.
Somehow it's writing something in the .htaccess file that cause an error.
Let me know if i need to provide some information.