Fatal error: Uncaught Error: Call to undefined function function_exists() in /home/mmenu/site/bitrix/modules/main/include/tophp7.php:15 Stack trace: #0 /home/mmenu/site/bitrix/modules/main/include/prolog_before.php(3): require_once() #1 /home/mmenu/site/watermark/watermark.php(3): require_once('/home/mmenu/sit...') #2 {main} thrown in /home/mmenu/site/bitrix/modules/main/include/tophp7.php on line 15