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                                            [2/2]
                                        Error                    
                    
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Error:
Call to a member function getTag() on null
  at /data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/AssetItem/LangActiveAssetItem.php:48
  at Joomla\CMS\WebAsset\AssetItem\LangActiveAssetItem->__construct()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetRegistry.php:248)
  at Joomla\CMS\WebAsset\WebAssetRegistry->createAsset()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetRegistry.php:420)
  at Joomla\CMS\WebAsset\WebAssetRegistry->parseRegistryFile()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetRegistry.php:352)
  at Joomla\CMS\WebAsset\WebAssetRegistry->parseRegistryFiles()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetRegistry.php:160)
  at Joomla\CMS\WebAsset\WebAssetRegistry->add()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetManager.php:508)
  at Joomla\CMS\WebAsset\WebAssetManager->registerAsset()
     (/data/www-data/ragg.in-bau/cms/libraries/src/WebAsset/WebAssetManager.php:234)
  at Joomla\CMS\WebAsset\WebAssetManager->__call()
     (/data/www-data/ragg.in-bau/cms/templates/cassiopeia/error.php:37)
  at require('/data/www-data/ragg.in-bau/cms/templates/cassiopeia/error.php')
     (/data/www-data/ragg.in-bau/cms/libraries/src/Document/HtmlDocument.php:731)
  at Joomla\CMS\Document\HtmlDocument->_loadTemplate()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Document/HtmlDocument.php:785)
  at Joomla\CMS\Document\HtmlDocument->_fetchTemplate()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Document/HtmlDocument.php:622)
  at Joomla\CMS\Document\HtmlDocument->parse()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Document/HtmlDocument.php:640)
  at Joomla\CMS\Document\HtmlDocument->render()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Document/ErrorDocument.php:139)
  at Joomla\CMS\Document\ErrorDocument->render()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Error/Renderer/HtmlRenderer.php:70)
  at Joomla\CMS\Error\Renderer\HtmlRenderer->render()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Exception/ExceptionHandler.php:136)
  at Joomla\CMS\Exception\ExceptionHandler::render()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Exception/ExceptionHandler.php:73)
  at Joomla\CMS\Exception\ExceptionHandler::handleException()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Application/CMSApplication.php:336)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/data/www-data/ragg.in-bau/cms/includes/app.php:58)
  at require_once('/data/www-data/ragg.in-bau/cms/includes/app.php')
     (/data/www-data/ragg.in-bau/cms/index.php:32)                 | 
| 
                                            [1/2]
                                        RuntimeException                    
                    
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RuntimeException:
Failed to start the session because headers have already been sent by "/data/www-data/ragg.in-bau/cms/libraries/src/Application/WebApplication.php" at line 301.
  at /data/www-data/ragg.in-bau/cms/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:454
  at Joomla\Session\Storage\NativeStorage->start()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Session/Storage/JoomlaStorage.php:313)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (/data/www-data/ragg.in-bau/cms/libraries/vendor/joomla/session/src/Session.php:396)
  at Joomla\Session\Session->start()
     (/data/www-data/ragg.in-bau/cms/libraries/vendor/joomla/session/src/Session.php:327)
  at Joomla\Session\Session->has()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Session/Session.php:194)
  at Joomla\CMS\Session\Session->get()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Factory.php:372)
  at Joomla\CMS\Factory::getUser()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Application/SiteApplication.php:570)
  at Joomla\CMS\Application\SiteApplication->initialiseApp()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Application/SiteApplication.php:238)
  at Joomla\CMS\Application\SiteApplication->doExecute()
     (/data/www-data/ragg.in-bau/cms/libraries/src/Application/CMSApplication.php:306)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/data/www-data/ragg.in-bau/cms/includes/app.php:58)
  at require_once('/data/www-data/ragg.in-bau/cms/includes/app.php')
     (/data/www-data/ragg.in-bau/cms/index.php:32)                 |