Fatal error: Uncaught TypeError: mktime(): Argument #4 ($month) must be of type ?int, string given in /home/eltestig/public_html/sys_core/variables.php:14 Stack trace: #0 /home/eltestig/public_html/sys_core/variables.php(14): mktime() #1 /home/eltestig/public_html/sys_core/includes.php(17): require_once('/home/eltestig/...') #2 /home/eltestig/public_html/index.php(2): include_once('/home/eltestig/...') #3 {main} thrown in /home/eltestig/public_html/sys_core/variables.php on line 14