I moved a site from my local machine to a staging server over the weekend. The site (front end) displays fine but the backend gives error of
I checked the files on the site under /wire/modules/System/SystemNotifications/ and can confirm SystemsNotifications.module exists.
Opening this file up and looking at line 346 ...
// convert runtime Notices to Notifications and bundle into array
if($this->placement == SystemNotificationsConfig::placementCombined) {
The SystemNotificationsConfig mentioned above is a PHP file which also exists and has the same permissions as the working version on my test site.