Fatal error: Uncaught Error: Call to a member function addFieldToFilter() on string in /home/forge/perfectwelding.co.uk/app/code/Mageplaza/Blog/Block/Post/Rss/Lists.php:106 Stack trace: #0 /home/forge/perfectwelding.co.uk/vendor/magento/module-rss/Model/Rss.php(78): Mageplaza\Blog\Block\Post\Rss\Lists->getRssData() #1 /home/forge/perfectwelding.co.uk/vendor/magento/module-rss/Model/Rss.php(109): Magento\Rss\Model\Rss->getFeeds() #2 /home/forge/perfectwelding.co.uk/app/code/Mageplaza/Blog/Controller/Post/Rss.php(46): Magento\Rss\Model\Rss->createRssXml() #3 /home/forge/perfectwelding.co.uk/generated/code/Mageplaza/Blog/Controller/Post/Rss/Interceptor.php(24): Mageplaza\Blog\Controller\Post\Rss->execute() #4 /home/forge/perfectwelding.co.uk/vendor/magento/framework/App/Action/Action.php(108): Mageplaza\Blog\Controller\Post\Rss\Interceptor->execute() #5 /home/forge/perfectwelding.co.uk/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request in /home/forge/perfectwelding.co.uk/app/code/Mageplaza/Blog/Block/Post/Rss/Lists.php on line 106