If you get a warning like this after upgrading to vB v4.2.2, Warning: Function split() is deprecated in ...
You need to edit the plugin, ACP Plugins & Products --> Plugin Manager, find the one titled, User Legend Color Bar and in there look for this,
Code:
$userbuls = split(',', $vbulletin->options['sirala']);
And replace it with this,
Code:
$userbuls = explode(',', $vbulletin->options['sirala']);