Fatal error: Uncaught TypeError: JTL\Template\Model::getTemplateType(): Return value must be of type string, null returned in /srv/www/htdocs/sluxx/includes/src/Template/Model.php:250
Stack trace:
#0 /srv/www/htdocs/sluxx/includes/src/Template/TemplateService.php(195): JTL\Template\Model->getTemplateType()
#1 /srv/www/htdocs/sluxx/includes/src/Template/TemplateService.php(144): JTL\Template\TemplateService->loadFull()
#2 /srv/www/htdocs/sluxx/includes/src/Smarty/JTLSmarty.php(86): JTL\Template\TemplateService->getActiveTemplate()
#3 /srv/www/htdocs/sluxx/includes/src/Smarty/JTLSmarty.php(71): JTL\Smarty\JTLSmarty->initTemplate()
#4 /srv/www/htdocs/sluxx/includes/src/Smarty/JTLSmarty.php(179): JTL\Smarty\JTLSmarty->__construct()
#5 /srv/www/htdocs/sluxx/includes/globalinclude.php(100): JTL\Smarty\JTLSmarty::getInstance()
#6 /srv/www/htdocs/sluxx/index.php(5): require('...')
#7 {main}
thrown in /srv/www/htdocs/sluxx/includes/src/Template/Model.php on line 250