Hi Ole-Kenneth, I have added a user with editor role but when he logs in, we see error messages, although posting etc is possible, but the dashboard looks messed up. Later I tried with author role, but same problem. I think it refers to the buttons restricted to administrators, since they do not show up, and instead show error messages (like plugin,etc).
To be sure it is this plugin that is causing this behaviour I deactivated it, but with same result; then I deinstalled it and after that the errors disappeared, clean dashboard again. Reinstalled plugin and messed up dashboard. Hopefully you can help. Thanks in advance!
Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/windroos/public_html/wp-content/plugins/menubar-color-changer/menubar-color-changer.php on line 111
Warning: Invalid argument supplied for foreach() in /home/windroos/public_html/wp-admin/includes/plugin.php on line 1409
Warning: Invalid argument supplied for foreach() in /home/windroos/public_html/wp-admin/includes/plugin.
and a few more lines