Updating Information Tab get error

When I am trying to update Information like Privacy / Terms and condition I get error :

Notice: Undefined index: custom_imgtitle in storage/modification/admin/model/catalog/information.php on line 106Notice: Undefined index: custom_alt in /storage/modification/admin/model/catalog/information.php on line 106Warning: Cannot modify header information - headers already sent by (output started at /admin/controller/startup/error.php:34) in /storage/modification/system/library/response.php on line 36

Which extension is changing those files?

Hi were you able to solve this problem, how did you solve it? same problem here