Fatal error: Uncaught TypeError: Return value of LizardMedia\ProductAttachment\Controller\Download\Attachment::loadAttachmentById() must implement interface LizardMedia\ProductAttachment\Api\Data\AttachmentInterface or be null, none returned in /var/www/clients/client2/web2/web/vendor/lizardmedia/module-product-attachments/Controller/Download/Attachment.php:110 Stack trace: #0 /var/www/clients/client2/web2/web/vendor/lizardmedia/module-product-attachments/Controller/Download/Attachment.php(71): LizardMedia\ProductAttachment\Controller\Download\Attachment->loadAttachmentById(332) #1 /var/www/clients/client2/web2/web/vendor/magento/framework/App/Action/Action.php(107): LizardMedia\ProductAttachment\Controller\Download\Attachment->execute() #2 /var/www/clients/client2/web2/web/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http)) #3 /var/www/clients/client2/web2/web/vendor/magento/framework/Interception/Interceptor.php(138): Lizard in /var/www/clients/client2/web2/web/vendor/lizardmedia/module-product-attachments/Controller/Download/Attachment.php on line 110