0 - Class "JPlugin" not found

Attempted to load class "JText" from the global namespace. Did you forget a "use" statement? (500 Whoops, looks like something went wrong.)

Attempted to load class "JText" from the global namespace.
Did you forget a "use" statement?

Exceptions 2

Symfony\Component\ErrorHandler\Error\ ClassNotFoundError

HtmlDocument->_loadTemplate('/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates/portal', 'error.php') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php (line 785)
    HtmlDocument->_fetchTemplate(array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php (line 622)
      HtmlDocument->parse(array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php (line 640)
        HtmlDocument->render(false, array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/ErrorDocument.php (line 139)
          ErrorDocument->render(false, array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Error/Renderer/HtmlRenderer.php (line 70)
            require_once('/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/index.php (line 32)

              Error

              Class "JPlugin" not found

              CMSApplication->loadPluginFromFilesystem('jcomments', 'system') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Extension/ExtensionManagerTrait.php (line 160)
                CMSApplication->loadExtension('Joomla\\CMS\\Extension\\PluginInterface', 'jcomments:system', '/home/dautzhxogd/domains/niewerbalne.pl/public_html/plugins/system/jcomments') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Extension/ExtensionManagerTrait.php (line 99)
                  CMSApplication->bootPlugin('jcomments', 'system') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Plugin/PluginHelper.php (line 232)
                    PluginHelper::import(object(stdClass), true, object(Dispatcher)) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Plugin/PluginHelper.php (line 192)
                      PluginHelper::importPlugin('system', null, true, object(Dispatcher)) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/CMSApplication.php (line 765)
                        CMSApplication->initialiseApp(array('language' => 'pl-PL')) in /home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/SiteApplication.php (line 643)
                          require_once('/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php') in /home/dautzhxogd/domains/niewerbalne.pl/public_html/index.php (line 32)

                            Stack Traces 2

                            [2/2] ClassNotFoundError
                            Symfony\Component\ErrorHandler\Error\ClassNotFoundError:
                            Attempted to load class "JText" from the global namespace.
                            Did you forget a "use" statement?
                            
                              at /home/dautzhxogd/domains/niewerbalne.pl/public_html/templates/portal/error.php:42
                              at require()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php:731)
                              at Joomla\CMS\Document\HtmlDocument->_loadTemplate('/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates/portal', 'error.php')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php:785)
                              at Joomla\CMS\Document\HtmlDocument->_fetchTemplate(array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php'))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php:622)
                              at Joomla\CMS\Document\HtmlDocument->parse(array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php'))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/HtmlDocument.php:640)
                              at Joomla\CMS\Document\HtmlDocument->render(false, array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php'))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Document/ErrorDocument.php:139)
                              at Joomla\CMS\Document\ErrorDocument->render(false, array('template' => 'portal', 'directory' => '/home/dautzhxogd/domains/niewerbalne.pl/public_html/templates', 'debug' => '0', 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php'))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Error/Renderer/HtmlRenderer.php:70)
                              at Joomla\CMS\Error\Renderer\HtmlRenderer->render(object(Error))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Exception/ExceptionHandler.php:136)
                              at Joomla\CMS\Exception\ExceptionHandler::render(object(Error))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Exception/ExceptionHandler.php:73)
                              at Joomla\CMS\Exception\ExceptionHandler::handleException(object(Error))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/CMSApplication.php:336)
                              at Joomla\CMS\Application\CMSApplication->execute()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php:58)
                              at require_once('/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/index.php:32)                
                            [1/2] Error
                            Error:
                            Class "JPlugin" not found
                            
                              at /home/dautzhxogd/domains/niewerbalne.pl/public_html/plugins/system/jcomments/jcomments.php:19
                              at require_once()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Extension/ExtensionManagerTrait.php:217)
                              at Joomla\CMS\Application\CMSApplication->loadPluginFromFilesystem('jcomments', 'system')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Extension/ExtensionManagerTrait.php:160)
                              at Joomla\CMS\Application\CMSApplication->loadExtension('Joomla\\CMS\\Extension\\PluginInterface', 'jcomments:system', '/home/dautzhxogd/domains/niewerbalne.pl/public_html/plugins/system/jcomments')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Extension/ExtensionManagerTrait.php:99)
                              at Joomla\CMS\Application\CMSApplication->bootPlugin('jcomments', 'system')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Plugin/PluginHelper.php:232)
                              at Joomla\CMS\Plugin\PluginHelper::import(object(stdClass), true, object(Dispatcher))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Plugin/PluginHelper.php:192)
                              at Joomla\CMS\Plugin\PluginHelper::importPlugin('system', null, true, object(Dispatcher))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/CMSApplication.php:765)
                              at Joomla\CMS\Application\CMSApplication->initialiseApp(array('language' => 'pl-PL'))
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/SiteApplication.php:643)
                              at Joomla\CMS\Application\SiteApplication->initialiseApp()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/SiteApplication.php:238)
                              at Joomla\CMS\Application\SiteApplication->doExecute()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/libraries/src/Application/CMSApplication.php:306)
                              at Joomla\CMS\Application\CMSApplication->execute()
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php:58)
                              at require_once('/home/dautzhxogd/domains/niewerbalne.pl/public_html/includes/app.php')
                                 (/home/dautzhxogd/domains/niewerbalne.pl/public_html/index.php:32)