Single Post Not Working After Reinstall

I’ve been working on this problem for a while. My site is gshradio.com. When clicking on a post to go to the single post, it does not work. I have gone through several different posts troubleshooting and here’s what I’ve done…

– Removed all plugins

– Reinstalled twenty-twelve theme

– Reinstalled from clean zip file after deleting wp-includes and wp-admin.

– Tested problem with different themes and getting the same problem.

– I had tested a category removal plugin, so after getting rid of it I did create a new category and try posting there on the off chance that would work.

– Loaded a backup of all files for the site from 1 day ago and then 1 week ago. I have not, however, touched the database as this is my least comfortable thing to do and would prefer guidance before touching it.

– Also started a new .htaccess file just in case!

I will gladly post any code, but since it happens with every theme I’m not quite sure what I should copy and paste. I did look at the errorlog and had a ton of stuff from Feedpress, but I have deleted it. That’s the only thing I saw, but I guess that doesn’t mean there is more there. I’m normally pretty good at solving this stuff so your help is very much appreciated!!