Error message

• Notice: Undefined variable: language in adotube_custom_get_menu_second_level() (line 104 of /mnt/adotube_shared/cc/www20/site/sites/all/modules/custom/adotube_custom/includes/adotube_custom.block.inc).
• Notice: Trying to get property of non-object in adotube_custom_get_menu_second_level() (line 104 of /mnt/adotube_shared/cc/www20/site/sites/all/modules/custom/adotube_custom/includes/adotube_custom.block.inc).