Admin warning message

Hi there, since a week or two I get this message in my admin pages:

Warning: in_array() expects parameter 2 to be array, null given in C:\domains\inaandacht.nl\wwwroot\wp-content\plugins\ultimate-branding\ultimate-branding-files\modules\custom-admin-bar-files\inc\UB_Admin_Bar.php on line 612

Is there something I cab do about it?

Thx for helping!