I went through all the steps given in your documentation at the end what i get is,
Fatal error: Declaration of MGS\Mpanel\Block\Framework\Page::render(Magento\Framework\App\ResponseInterface $response) must be compatible with Magento\Framework\Controller\AbstractResult::render(Magento\Framework\App\Response\HttpInterface $response) in /home/reasona1/public_html/app/code/MGS/Mpanel/Block/Framework/Page.php on line 14
I went through all the steps given in your documentation at the end what i get is,
Fatal error: Declaration of MGS\Mpanel\Block\Framework\Page::render(Magento\Framework\App\ResponseInterface $response) must be compatible with Magento\Framework\Controller\AbstractResult::render(Magento\Framework\App\Response\HttpInterface $response) in /home/reasona1/public_html/app/code/MGS/Mpanel/Block/Framework/Page.php on line 14
Hi
Thanks for your ticket, have you applied patch2.2+ yet? Please check and apply this patch, the problem will be resolved