Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /home/users/cluewo01/public_html/domains/clue.waw.pl/public_html/katalog.php:245
Stack trace:
#0 /home/users/cluewo01/public_html/domains/clue.waw.pl/public_html/katalog.php(245): mysqli_num_rows(false)
#1 {main}
thrown in /home/users/cluewo01/public_html/domains/clue.waw.pl/public_html/katalog.php on line 245
