Fatal error: Uncaught Error: Call to a member function query() on null in D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\runonce\sql.deinstallationform.php:21 Stack trace: #0 D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\runonce\deinstallationform.php(437): commit_funktion() #1 {main} thrown in D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\runonce\sql.deinstallationform.php on line 21