[Forum] errors appeared today

[bigjay00]

I went to enlarge a picture, then clicked the back button and had this appear above the header.

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in [path]/includes/class_bootstrap.php(426) : eval()'d code on line 11

Warning: array_unique() [function.array-unique]: The argument should be an array in [path]/includes/class_bootstrap.php(426) : eval()'d code on line 11

Warning: implode() [function.implode]: Invalid arguments passed in [path]/includes/class_bootstrap.php(426) : eval()'d code on line 11

[Lynne]

Those errors are from a modification. Try disabling your modifications/plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit includes/config.php and add this line right under <?php

define('DISABLE_HOOKS', true);