Fatal error: Uncaught TypeError: mysqli_select_db(): Argument #1 ($mysql) must be of type mysqli, SimpleXMLElement given in /home/httpd/vhosts/sportzentrum-flims.ch/httpdocs/reservation-tennis/clases/conexion.php:20 Stack trace: #0 /home/httpd/vhosts/sportzentrum-flims.ch/httpdocs/reservation-tennis/clases/conexion.php(20): mysqli_select_db(Object(SimpleXMLElement), Object(mysqli)) #1 /home/httpd/vhosts/sportzentrum-flims.ch/httpdocs/reservation-tennis/clases/conexion.php(84): conexion->conectarBase() #2 /home/httpd/vhosts/sportzentrum-flims.ch/httpdocs/reservation-tennis/tennis_reservation.php(33): conexion->getConsulta('delete FROM ten...') #3 {main} thrown in /home/httpd/vhosts/sportzentrum-flims.ch/httpdocs/reservation-tennis/clases/conexion.php on line 20