A non-numeric value encountered in ...

[blue7]

Hello,

I have a vB4.2.5 forum running on PHP 7.1.32 recently i started to get this warning, any idea how to solve?

PHP Code:

[26-Sep-2019 02:51:12 Europe/Istanbul] PHP Warning:  A non-numeric value encountered in /includes/class_postbit.php on line 1047 


The lines (1043 - 1051):

PHP Code:

            (
                $this->thread['open'] AND
                $this->post['userid'] == $this->registry->userinfo['userid'] AND
                ($forumperms & $this->registry->bf_ugp_forumpermissions['caneditpost']) AND
                (    $this->post['dateline'] >= (TIMENOW - ($this->registry->options['edittimelimit'] * 60)) OR
                    $this->registry->options['edittimelimit'] == 0
                )
            ))
        )