CB

Warning: Invalid argument supplied for foreach() in administrator/components/com_comprofiler/library/cb/cb.lists.php on line 319

The above error is for CB 1.7.1, but issue is still present in CB 1.8 on line 353. The foreach has no IF to check $users so you can end up with null or '' trying to foreach.

https://www.joomlapolis.com/forum/154-advanced-members-support/190321-configuring-cb-users

Patch adds IF check to foreach loop to prevent null values from trying to loop.