vikisangre on "[Plugin: W3 Total Cache] Internal Server error something wrong in .htaccess file"

Hi, I recently do some changes in .htaccess file because of w3 plugin. But I see everything gonna stuck even the admin console. how to edit the .htaccess file again without ftp because admin console also give error. Here is my website http://www.seobacklinksites.com

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