Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/datasources/dbo/dbo_mysqli.php:116
Stack trace:
#0 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/datasources/dbo/dbo_mysqli.php(116): mysqli_query()
#1 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/datasources/dbo/dbo_mysqli.php(150): DboMysqli->_execute()
#2 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/model.php(777): DboMysqli->listSources()
#3 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/model.php(483): Model->setSource()
#4 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/class_registry.php(142): Model->__construct()
#5 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/controller/controller.php(634): ClassRegistry::init()
#6 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/controller/controller.php(501): Controller->loadModel()
#7 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/dispatcher.php(186): Controller->constructClasses()
#8 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/dispatcher.php(171): Dispatcher->_invoke()
#9 /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/app/webroot/index.php(83): Dispatcher->dispatch()
#10 {main}
thrown in /home/webdocs-subsites/oc/mayr/reaktionsdatenbank/cake/libs/model/datasources/dbo/dbo_mysqli.php on line 116