Ignore all this topic, I've now deleted the business directory plugin that the topic is about. Ok, the other day I installed a business directory WP plugin on my site, it worked fine, some local businesses started adding links, I just noticed today that when looking at any of the listings, it says 404 page does not exist, tried the submit listing and get the same. So, I went to the site of the person who makes the plugin, and they have a section here called Q. Why the main site gives me the 404 or Not Found error message or I cannot see the “Submitt a link”? http://www.forgani.com/tools/opendirectorylinks It give directions to change htaccess file like this: I'm not sure what I've done, I went to my webhost control panel and used the search function to find htaccess for my site, and I went to edit it, the htaccess file originally had this code in the file: So, I took these 2 lines from the plugin authors site and pasted them in to make it look like this, I've highlighted what I added: I saved that and my site loaded but had some images missing, I refreshed the page and then it was as if the site had no .css or style on it, so I edited the htaccess file again to make it like it was before I edited it, now the site doesn't work at all, it just gives a white page saying internal server error What have I done and how do I fix it?