Fatal error: Uncaught Error: Undefined class constant 'CUSTOM_TEMPLATE' in /home/shromatu/public_html/app/code/Mirasvit/Seo/Helper/CurrentSeoData.php:100 Stack trace: #0 /home/shromatu/public_html/app/code/Mirasvit/Seo/Block/Description.php(90): Mirasvit\Seo\Helper\CurrentSeoData->getDescriptionPosition(false, 'm_category_seo_...') #1 /home/shromatu/public_html/app/code/Mirasvit/Seo/view/frontend/templates/description.phtml(4): Mirasvit\Seo\Block\Description->getDescriptionPosition() #2 /home/shromatu/public_html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/home/shromatu/...') #3 /home/shromatu/public_html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\TemplateEngine\Php->render(Object(Mirasvit\Seo\Block\Description), '/home/shromatu/...', Array) #4 /home/shromatu/public_html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\TemplateEngine\Php\Interceptor->___callParent('render', Array) #5 /home/shromatu/public_html/vendor/magento/f in /home/shromatu/public_html/app/code/Mirasvit/Seo/Helper/CurrentSeoData.php on line 100