Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /homepages/32/d398126692/htdocs/peperadio/Content/pos.php:1 Stack trace: #0 /homepages/32/d398126692/htdocs/peperadio/Content/pos.php(1): mysqli_num_rows(false) #1 {main} thrown in /homepages/32/d398126692/htdocs/peperadio/Content/pos.php on line 1