Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /data/a/d/adc07312-dfce-47c8-a4ae-48da1cc404cd/gateway.sk/web/kuponit.php:129 Stack trace: #0 /data/a/d/adc07312-dfce-47c8-a4ae-48da1cc404cd/gateway.sk/web/kuponit.php(129): mysqli_num_rows(false) #1 /data/a/d/adc07312-dfce-47c8-a4ae-48da1cc404cd/gateway.sk/web/index.php(8): include('/data/a/d/adc07...') #2 {main} thrown in /data/a/d/adc07312-dfce-47c8-a4ae-48da1cc404cd/gateway.sk/web/kuponit.php on line 129