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Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /home/clients/7a86a8d9d0ee245fbac154f83bbeff69/web/pierres/objet.php:30 Stack trace: #0 /home/clients/7a86a8d9d0ee245fbac154f83bbeff69/web/pierres/objet.php(30): mysqli_num_rows(false) #1 {main} thrown in /home/clients/7a86a8d9d0ee245fbac154f83bbeff69/web/pierres/objet.php on line 30