Error UndefinedMethodError

HTTP 500 Whoops, looks like something went wrong.

Attempted to call an undefined method named "getInstance" of class "Joomla\Registry\Registry".

Exceptions 2

Symfony\Component\ErrorHandler\Error\ UndefinedMethodError

jsn_template_framework_class_loader()
jsn_template_framework_class_loader() in /home/wheniouc/public_html/templates/jsn_metro_pro/error.php (line 24)
    require('/home/wheniouc/public_html/templates/jsn_metro_pro/error.php') in /home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php (line 721)
      ExceptionHandler::handleException() in /home/wheniouc/public_html/libraries/src/Application/CMSApplication.php (line 322)
        CMSApplication->execute() in /home/wheniouc/public_html/includes/app.php (line 61)
          require_once('/home/wheniouc/public_html/includes/app.php') in /home/wheniouc/public_html/index.php (line 32)

            Error

            Call to undefined method Joomla\Registry\Registry::getInstance()

            jsn_template_framework_class_loader()
            jsn_template_framework_class_loader() in /home/wheniouc/public_html/templates/jsn_metro_pro/index.php (line 18)
              require('/home/wheniouc/public_html/templates/jsn_metro_pro/index.php') in /home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php (line 721)
                CMSApplication->execute() in /home/wheniouc/public_html/includes/app.php (line 61)
                  require_once('/home/wheniouc/public_html/includes/app.php') in /home/wheniouc/public_html/index.php (line 32)

                    Stack Traces 2

                    [2/2] UndefinedMethodError
                    Symfony\Component\ErrorHandler\Error\UndefinedMethodError:
                    Attempted to call an undefined method named "getInstance" of class "Joomla\Registry\Registry".
                    
                      at /home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:113
                      at JSNTplHelper::getManifestCache()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:217)
                      at JSNTplHelper::getTemplateVersion()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/loader.php:35)
                      at jsn_template_framework_class_loader()
                      at class_exists()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:196)
                      at JSNTplHelper::getTemplateVersion()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/loader.php:35)
                      at jsn_template_framework_class_loader()
                         (/home/wheniouc/public_html/templates/jsn_metro_pro/error.php:24)
                      at require('/home/wheniouc/public_html/templates/jsn_metro_pro/error.php')
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:721)
                      at Joomla\CMS\Document\HtmlDocument->_loadTemplate()
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:776)
                      at Joomla\CMS\Document\HtmlDocument->_fetchTemplate()
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:612)
                      at Joomla\CMS\Document\HtmlDocument->parse()
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:630)
                      at Joomla\CMS\Document\HtmlDocument->render()
                         (/home/wheniouc/public_html/libraries/src/Document/ErrorDocument.php:139)
                      at Joomla\CMS\Document\ErrorDocument->render()
                         (/home/wheniouc/public_html/libraries/src/Error/Renderer/HtmlRenderer.php:70)
                      at Joomla\CMS\Error\Renderer\HtmlRenderer->render()
                         (/home/wheniouc/public_html/libraries/src/Exception/ExceptionHandler.php:126)
                      at Joomla\CMS\Exception\ExceptionHandler::render()
                         (/home/wheniouc/public_html/libraries/src/Exception/ExceptionHandler.php:72)
                      at Joomla\CMS\Exception\ExceptionHandler::handleException()
                         (/home/wheniouc/public_html/libraries/src/Application/CMSApplication.php:322)
                      at Joomla\CMS\Application\CMSApplication->execute()
                         (/home/wheniouc/public_html/includes/app.php:61)
                      at require_once('/home/wheniouc/public_html/includes/app.php')
                         (/home/wheniouc/public_html/index.php:32)                
                    [1/2] Error
                    Error:
                    Call to undefined method Joomla\Registry\Registry::getInstance()
                    
                      at /home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:113
                      at JSNTplHelper::getManifestCache()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:217)
                      at JSNTplHelper::getTemplateVersion()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/loader.php:35)
                      at jsn_template_framework_class_loader()
                      at class_exists()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/helper.php:196)
                      at JSNTplHelper::getTemplateVersion()
                         (/home/wheniouc/public_html/plugins/system/jsntplframework/libraries/joomlashine/loader.php:35)
                      at jsn_template_framework_class_loader()
                         (/home/wheniouc/public_html/templates/jsn_metro_pro/index.php:18)
                      at require('/home/wheniouc/public_html/templates/jsn_metro_pro/index.php')
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:721)
                      at Joomla\CMS\Document\HtmlDocument->_loadTemplate()
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:776)
                      at Joomla\CMS\Document\HtmlDocument->_fetchTemplate()
                         (/home/wheniouc/public_html/libraries/src/Document/HtmlDocument.php:612)
                      at Joomla\CMS\Document\HtmlDocument->parse()
                         (/home/wheniouc/public_html/libraries/src/Application/CMSApplication.php:1012)
                      at Joomla\CMS\Application\CMSApplication->render()
                         (/home/wheniouc/public_html/libraries/src/Application/SiteApplication.php:724)
                      at Joomla\CMS\Application\SiteApplication->render()
                         (/home/wheniouc/public_html/libraries/src/Application/CMSApplication.php:298)
                      at Joomla\CMS\Application\CMSApplication->execute()
                         (/home/wheniouc/public_html/includes/app.php:61)
                      at require_once('/home/wheniouc/public_html/includes/app.php')
                         (/home/wheniouc/public_html/index.php:32)