I have used the search function, but did not find something comparable. Is this error on the side of WordPress or myself?
Warning: array_keys() expects parameter 1 to be array, boolean given in /var/www/user834/html/wp-admin/includes/class-wp-users-list-table.php on line 305
Showing up in the Users section of one of the Multiuser - Sites (not the admin site), on top of the users list.
I hope that someone experienced can make a statement, I'd be thankful for information on the subject :)