All of a sudden "no access" showing when members view documents

All of a sudden all members are now seeing the "no access" when trying to download or view documents.

I can't figure out, even with all URL groups disabled, users still cannot see the documents.

The changed happened after you guys altered my URL groups settings here https://premium.wpmudev.org/forums/topic/preg_match-error-just-started-appearing-on-my-site#post-672132

Fast help would be greatly appreciated!!