Fatal error: Uncaught TypeError: Modules\Training\Mappers\Training::calculateNextTrainingDate(): Argument #1 ($training) must be of type Modules\Training\Models\Training, null given, called in /var/www/vhosts/freiezocker.de/httpdocs/application/modules/training/controllers/Index.php on line 68 and defined in /var/www/vhosts/freiezocker.de/httpdocs/application/modules/training/mappers/Training.php:274 Stack trace: #0 /var/www/vhosts/freiezocker.de/httpdocs/application/modules/training/controllers/Index.php(68): Modules\Training\Mappers\Training->calculateNextTrainingDate() #1 /var/www/vhosts/freiezocker.de/httpdocs/application/libraries/Ilch/Page.php(243): Modules\Training\Controllers\Index->showAction() #2 /var/www/vhosts/freiezocker.de/httpdocs/application/libraries/Ilch/Page.php(137): Ilch\Page->loadController() #3 /var/www/vhosts/freiezocker.de/httpdocs/index.php(68): Ilch\Page->loadPage() #4 {main} thrown in /var/www/vhosts/freiezocker.de/httpdocs/application/modules/training/mappers/Training.php on line 274