Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /homepages/11/d22721644/htdocs/corner/mod/kalender/eigenkalender.php:15 Stack trace: #0 /homepages/11/d22721644/htdocs/corner/mod/kalender/eigenkalender.php(15): mysqli_query('select id from ...') #1 /homepages/11/d22721644/htdocs/corner/mod/kalender/index.php(739): include('/homepages/11/d...') #2 /homepages/11/d22721644/htdocs/corner/index.php(132): include('/homepages/11/d...') #3 /homepages/11/d22721644/htdocs/rdeck/fraktion/index.php(3): include('/homepages/11/d...') #4 {main} thrown in /homepages/11/d22721644/htdocs/corner/mod/kalender/eigenkalender.php on line 15