I have a site running v 2.5.3 which all of a sudden has come up with a ton of errors and is not allowing the users to manage files. The errors look like this.
A PHP Error was encountered Severity: Notice Message: Undefined index: 1 Filename: cp/content_files.php Line Number: 369
There's probably 30 errors in that file. Which then ends with
A PHP Error was encountered Severity: Warning Message: Cannot modify header information - headers already sent by (output started at /Applications/AMPPS/www/ruffinos_lafayette/system/codeigniter/system/core/Exceptions.php:170) Filename: core/Common.php Line Number: 412
Super Admins have the ability to access this just fine, it's just users. I've deleted members, created new member groups, etc. Nothing has worked.