Since last night we've started seeing the error below on our site. This produces a "WSOD" for regular users but doesnt seem to affect admins. It's happening on two of our sites (I can only select one site above): insession.journalism.ryerson.ca and procomtechnology.ca.
I have noticed that I can disable the Access plugin and the issue goes away. The neat thing is that the access control measures in place (restricting access to parts of the site based on user role) seem to still function. Not sure if this is the intended outcome.
The error is the same on both sites and happens upon "regular" user login:
"Howdy!
Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.
In this case, WordPress caught an error with one of your plugins, Toolset Access.
First, visit your website (hidden link) and check for any visible issues. Next, visit the page where the error was caught (hidden link) and check for any visible issues.
Please contact your host for assistance with investigating this issue further.
If your site appears broken and you can't access your dashboard normally, WordPress now has a special "recovery mode". This lets you safely login to your dashboard and investigate further.
hidden link
To keep your site safe, this link will expire in 1 day. Don't worry about that, though: a new link will be emailed to you if the error occurs again after it expires.
When seeking help with this issue, you may be asked for some of the following information:
WordPress version 5.8.1
Current theme: In Session Academy Theme (version )
Current plugin: Toolset Access (version 2.8.12)
PHP version 7.3.31
Error Details
=============
An error of type E_ERROR was caused in line 613 of the file /dom36079/wp-content/plugins/types-access/application/models/capabilities.php. Error message: Uncaught Error: Class 'OTGS\Toolset\Access\Controllers\UploadPermissions' not found in /dom36079/wp-content/plugins/types-access/application/models/capabilities.php:613
Stack trace:
#0 /dom36079/wp-content/plugins/types-access/application/controllers/filters/backend_filters.php(534): OTGS\Toolset\Access\Models\Capabilities->get_capabilities_by_user_permissions(Array, Array, Array, Object(WP_User))
#1 /wordpress-versions/5.8.1/wp-includes/class-wp-hook.php(303): OTGS\Toolset\Access\Controllers\Filters\BackendFilters->toolset_access_has_cap_filter(Array, Array, Array, Object(WP_User))
#2 /wordpress-versions/5.8.1/wp-includes/plugin.php(189): WP_Hook->apply_filters(Array, Array)
#3 /wordpress-versions/5.8.1/wp-includes/class-wp-user.php(786): apply_filters('user_has_cap', Array, Array, Array, Object(WP_User))
#4 /wordpress-versions/5.8.1/wp-includes/capabilities.php(801): WP_User->has_cap('upload_files')
#5 /wordpress-versions/5.8.1/wp-includes/capabilities.php(693): user_can(Object(WP_User), 'upload_files’)
#6”
Hopefully you can help.....
Thanks,
Many