Exception: Deprecated Functionality: Magento\Framework\App\ResourceConnection\Config::__construct(): Implicitly marking parameter $serializer as nullable is deprecated, the explicit nullable type must be used instead in /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/App/ResourceConnection/Config.php on line 44 in /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/App/ErrorHandler.php:61
Stack trace:
#0 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/composer/ClassLoader.php(444): Magento\Framework\App\ErrorHandler->handler()
#1 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/composer/ClassLoader.php(444): include()
#2 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile()
#3 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/generated/code/Magento/Framework/App/ResourceConnection/Config/Proxy.php(7): Composer\Autoload\ClassLoader->loadClass()
#4 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/composer/ClassLoader.php(444): include('...')
#5 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile()
#6 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Composer\Autoload\ClassLoader->loadClass()
#7 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject()
#8 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#9 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#10 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#11 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#12 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#13 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#14 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#15 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(125): Magento\Framework\ObjectManager\Factory\Compiled->get()
#16 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(86): Magento\Framework\ObjectManager\Factory\Compiled->parseArray()
#17 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#18 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#19 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create()
#20 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get()
#21 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create()
#22 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/Interception/PluginList/PluginList.php(173): Magento\Framework\ObjectManager\ObjectManager->get()
#23 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/Interception/Interceptor.php(119): Magento\Framework\Interception\PluginList\PluginList->getPlugin()
#24 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Interceptor->{closure:Magento\Framework\Interception\Interceptor::___callPlugins():104}()
#25 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http\Interceptor->___callPlugins()
#26 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/vendor/magento/framework/App/Bootstrap.php(269): Magento\Framework\App\Http\Interceptor->catchException()
#27 /var/www/vhosts/praxis-im-mittelpunkt.de/httpdocs/pub/index.php(29): Magento\Framework\App\Bootstrap->run()
#28 {main}