Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, non-static method phpbb_gallery_version::version() cannot be called statically in /mnt/new_data/sites/adybov.ru/forum/gallery/includes/functions_version_check.php:45 Stack trace: #0 /mnt/new_data/sites/adybov.ru/forum/gallery/includes/common.php(36): mod_version_check() #1 /mnt/new_data/sites/adybov.ru/forum/gallery/image_page.php(42): include('...') #2 {main} thrown in /mnt/new_data/sites/adybov.ru/forum/gallery/includes/functions_version_check.php on line 45