Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/.sites/65/site2035772/web/TN/annahmebestaetigungmail.php:10
Stack trace:
#0 /home/.sites/65/site2035772/web/TN/annahmebestaetigungmail.php(10): mysqli_query(NULL, NULL)
#1 {main}
  thrown in /home/.sites/65/site2035772/web/TN/annahmebestaetigungmail.php on line 10