I'm having problems accessing the Views interface. It seems like a permissions issue, but I can't seem to figure out what's going on. My content managers have permissions to read/write/etc for views, but views isn't listed in my menus, and I can't get it from the normal drop-down menu. I've tried manually going to the views URL and I get an access denied error. After clearing caches, I can temporarily access the interface for views, but I get this error:
An AJAX HTTP error occurred.
HTTP Result Code: 500
Debugging information follows.
StatusText: Internal Server Error