[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/datetime.php on line 174: Declaration of DateTime::mysqlnd($interval) should be compatible with DateTime::user_ip($hour, $minute, $second = NULL, $microseconds = NULL)

Fatal error: Uncaught Error: Call to undefined method DateTime::createFromFormat() in C:\AppServ\www\vendor\symfony\http-foundation\Response.php:212 Stack trace: #0 C:\AppServ\www\phpbb\controller\helper.php(99): Symfony\Component\HttpFoundation\Response->__construct('<!DOCTYPE html>...', 200, Array) #1 C:\AppServ\www\phpbb\help\controller\controller.php(74): phpbb\controller\helper->render('faq_body.html', 'Frequently Aske...') #2 C:\AppServ\www\vendor\symfony\http-kernel\HttpKernel.php(135): phpbb\help\controller\controller->handle() #3 C:\AppServ\www\vendor\symfony\http-kernel\HttpKernel.php(57): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(phpbb\symfony_request), 1) #4 C:\AppServ\www\app.php(35): Symfony\Component\HttpKernel\HttpKernel->handle(Object(phpbb\symfony_request)) #5 {main} thrown in C:\AppServ\www\vendor\symfony\http-foundation\Response.php on line 212