Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/httpd/vhosts/andreaundueli.ch/httpdocs/galerie/includes/function.php:143
Stack trace:
#0 /home/httpd/vhosts/andreaundueli.ch/httpdocs/galerie/includes/function.php(143): mysqli_query(NULL, 'SELECT * FROM m...')
#1 /home/httpd/vhosts/andreaundueli.ch/httpdocs/galerie/includes/function.php(49): bilder_exists()
#2 /home/httpd/vhosts/andreaundueli.ch/httpdocs/galerie/gale_index.php(4): include('/home/httpd/vho...')
#3 {main}
  thrown in /home/httpd/vhosts/andreaundueli.ch/httpdocs/galerie/includes/function.php on line 143