Warning: mysqli_query(): Couldn't fetch mysqli in /strona-glowna.php on line 194

Fatal error: Uncaught Error: Call to undefined function mysql_error() in /engine/klasy.php:157 Stack trace: #0 /strona-glowna.php(194): dodatkowe_funkcje::pokaz_blad() #1 /index.php(89): include('/strona-glowna....') #2 {main} thrown in /engine/klasy.php on line 157