<div class="bs-exception">
  <h3>Es ist ein Fehler aufgetreten</h3>
  <p>Bei der Verarbeitung deiner Anfrage ist folgender Fehler aufgetreten:</p>
  <div class="bs-exception-message">
⧼A connection error occured. 
Query: SELECT  tl_namespace,tl_title,page_id,page_namespace,page_title,page_restrictions,page_is_redirect,page_is_new,page_random,page_touched,page_links_updated,page_latest,page_len,page_content_model  FROM `hw_templatelinks` LEFT JOIN `hw_page` ON ((page_namespace=tl_namespace) AND (page_title=tl_title))   WHERE tl_from = '129805'  
Function: Title::getLinksFrom
Error: 2006 MySQL server has gone away (127.0.0.1)
⧽
  </div>
  <p>Bitte kontaktieren Sie Ihren Administrator.</p>
  <hr />
  <span class="bs-exception-stacktrace-toggle">
    <span style="display:none;">Fehlerdetails anzeigen</span>
    <span style="display:none;">Fehlerdetails verbergen</span>
  </span>
  <div class="bs-exception-stacktrace">
   <pre>
#0 /var/www/bluespice/w/includes/libs/rdbms/database/Database.php(1427): Wikimedia\Rdbms\Database->makeQueryException('MySQL server ha...', 2006, 'SELECT  tl_name...', 'Title::getLinks...')
#1 /var/www/bluespice/w/includes/libs/rdbms/database/Database.php(1200): Wikimedia\Rdbms\Database->reportQueryError('MySQL server ha...', 2006, 'SELECT  tl_name...', 'Title::getLinks...', false)
#2 /var/www/bluespice/w/includes/libs/rdbms/database/Database.php(1653): Wikimedia\Rdbms\Database->query('SELECT  tl_name...', 'Title::getLinks...')
#3 /var/www/bluespice/w/includes/Title.php(3748): Wikimedia\Rdbms\Database->select(Array, Array, Array, 'Title::getLinks...', Array, Array)
#4 /var/www/bluespice/w/includes/Title.php(3777): Title->getLinksFrom(Array, 'templatelinks', 'tl')
#5 /var/www/bluespice/w/extensions/BlueSpicePageAccess/src/CheckAccess.php(64): Title->getTemplateLinksFrom()
#6 /var/www/bluespice/w/extensions/BlueSpicePageAccess/src/CheckAccess.php(55): BlueSpice\PageAccess\CheckAccess->getAccessGroups(Object(Title))
#7 /var/www/bluespice/w/extensions/BlueSpicePageAccess/src/Permission/Lockdown/Module/BlockActionsOnTagPageAccess.php(98): BlueSpice\PageAccess\CheckAccess->isUserAllowed(Object(Title), Object(User))
#8 /var/www/bluespice/w/extensions/BlueSpiceFoundation/src/Permission/Lockdown.php(100): BlueSpice\PageAccess\Permission\Lockdown\Module\BlockActionsOnTagPageAccess->mustLockdown(Object(Title), Object(User), 'read')
#9 /var/www/bluespice/w/extensions/BlueSpiceFoundation/src/Permission/Lockdown.php(68): BlueSpice\Permission\Lockdown->getLockState('read')
#10 /var/www/bluespice/w/extensions/BlueSpiceFoundation/src/Hook/GetUserPermissionsErrors/ApplyLockdown.php(10): BlueSpice\Permission\Lockdown->isLockedDown('read')
#11 /var/www/bluespice/w/extensions/BlueSpiceFoundation/src/Hook.php(123): BlueSpice\Hook\GetUserPermissionsErrors\ApplyLockdown->skipProcessing()
#12 /var/www/bluespice/w/extensions/BlueSpiceFoundation/src/Hook/GetUserPermissionsErrors.php(74): BlueSpice\Hook->process()
#13 /var/www/bluespice/w/includes/Hooks.php(177): BlueSpice\Hook\GetUserPermissionsErrors::callback(Object(Title), Object(User), 'read', '')
#14 /var/www/bluespice/w/includes/Hooks.php(205): Hooks::callHook('getUserPermissi...', Array, Array, NULL)
#15 /var/www/bluespice/w/includes/Title.php(2275): Hooks::run('getUserPermissi...', Array)
#16 /var/www/bluespice/w/includes/Title.php(2737): Title->checkPermissionHooks('read', Object(User), Array, 'secure', false)
#17 /var/www/bluespice/w/includes/Title.php(2135): Title->getUserPermissionsErrorsInternal('read', Object(User), 'secure')
#18 /var/www/bluespice/w/includes/api/ApiBase.php(2031): Title->getUserPermissionsErrors('read', Object(User))
#19 /var/www/bluespice/w/includes/api/ApiParse.php(154): ApiBase->checkTitleUserPermissions(Object(Title), 'read')
#20 /var/www/bluespice/w/includes/api/ApiMain.php(1579): ApiParse->execute()
#21 /var/www/bluespice/w/includes/api/ApiMain.php(504): ApiMain->executeAction()
#22 /var/www/bluespice/w/extensions/BlueSpiceUEModulePDF/includes/PDFPageProvider.class.php(124): ApiMain->execute()
#23 /var/www/bluespice/w/extensions/BlueSpiceUEModulePDF/includes/PDFPageProvider.class.php(56): BsPDFPageProvider::collectData(Object(Title), Object(DOMDocument), Array)
#24 /var/www/bluespice/w/extensions/BlueSpiceUEModulePDF/includes/ExportModulePDF.class.php(68): BsPDFPageProvider::getPage(Array)
#25 /var/www/bluespice/w/extensions/BlueSpiceUniversalExport/includes/specials/SpecialUniversalExport.class.php(191): BsExportModulePDF->createExportFile(Object(SpecialUniversalExport))
#26 /var/www/bluespice/w/extensions/BlueSpiceUniversalExport/includes/specials/SpecialUniversalExport.class.php(117): SpecialUniversalExport->processParameter('Parteispende:Do...')
#27 /var/www/bluespice/w/includes/specialpage/SpecialPage.php(565): SpecialUniversalExport->execute('Parteispende:Do...')
#28 /var/www/bluespice/w/includes/specialpage/SpecialPageFactory.php(568): SpecialPage->run('Parteispende:Do...')
#29 /var/www/bluespice/w/includes/MediaWiki.php(288): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
#30 /var/www/bluespice/w/includes/MediaWiki.php(861): MediaWiki->performRequest()
#31 /var/www/bluespice/w/includes/MediaWiki.php(524): MediaWiki->main()
#32 /var/www/bluespice/w/index.php(42): MediaWiki->run()
#33 {main}
   </pre>
  </div>
</div>