I have a WordPress installation (hosted in Bluehost) for my blog. I want to include new contributors to it so they can create their posts and I can later publish them after I review them.
The problem I am having is that any user who is not the main Admin user is getting a 500 (internal server error) when clicking the 'Add new' button in the posts section. Apparently post_new is crashing for some reason. This applies for contributors, authors, and basically any kind of role I try except for admin.
I checked the error logs but there is nothing there. I haven't found any issue with my plugins either and I increased the memory limit just in case. I don't know when this problem started since I only decided to create contributor users recently. As far as I know it's always been there.
Any idea what could be causing this?