Fatal error: Declaration of XFDev\ShopUsernameIcon\Pub\Controller\Inventory::actionIndex(XF\Mvc\ParameterBag $params) must be compatible with DBTech\Shop\Pub\Controller\Inventory::actionIndex(XF\Mvc\ParameterBag $params): XF\Mvc\Reply\AbstractReply in /home/users/xfdevs/www/src/addons/XFDev/ShopUsernameIcon/Pub/Controller/Inventory.php on line 18