Thread:Extension talk:GuidedTour/Error message after installing GuidedTour: "Detected bug in an extension! Hook CanonicalNamespaces..."

Hi installed both EventLogging and GuidedTour, and get this error message after activating GuidedTour. Can you help me, please?

Detected bug in an extension! Hook CanonicalNamespaces closure failed to return a value; should return true to continue hook processing or false to abort. Backtrace:
 * 1) 0 /var/www/[myfolder]/includes/GlobalFunctions.php(3883): Hooks::run('CanonicalNamesp...', Array)
 * 2) 1 /var/www/[myfolder]/includes/Namespace.php(226): wfRunHooks('CanonicalNamesp...', Array)
 * 3) 2 /var/www/[myfolder]/includes/Namespace.php(257): MWNamespace::getCanonicalNamespaces
 * 4) 3 /var/www/[myfolder]/languages/Language.php(705): MWNamespace::getCanonicalIndex('template')
 * 5) 4 /var/www/[myfolder]/includes/Title.php(3136): Language->getNsIndex('Template')
 * 6) 5 /var/www/[myfolder]/includes/Title.php(152): Title->secureAndSplit
 * 7) 6 /var/www/[myfolder]/extensions/DynamicPageList/DPLSetup.php(1232): Title::newFromText('Template:Extens...')
 * 8) 7 /var/www/[myfolder]/extensions/DynamicPageList/DPLSetup.php(1211): ExtDynamicPageList::commonSetup
 * 9) 8 [internal function]: ExtDynamicPageList::setupDPL
 * 10) 9 /var/www/[myfolder]/includes/Setup.php(551): call_user_func(Array)
 * 11) 10 /var/www/[myfolder]/includes/WebStart.php(161): require_once('/var/www/...')
 * 12) 11 /var/www/[myfolder]/index.php(55): require('/var/www/...')
 * 13) 12 {main}

If I deactivate the DynamicPageList extension I get the following error Detected bug in an extension! Hook CanonicalNamespaces closure failed to return a value; should return true to continue hook processing or false to abort. Backtrace:
 * 1) 0 /var/www/[myfolder]/includes/GlobalFunctions.php(3883): Hooks::run('CanonicalNamesp...', Array)
 * 2) 1 /var/www/[myfolder]/includes/Namespace.php(226): wfRunHooks('CanonicalNamesp...', Array)
 * 3) 2 /var/www/[myfolder]/languages/Language.php(493): MWNamespace::getCanonicalNamespaces
 * 4) 3 /var/www/[myfolder]/includes/search/SearchEngine.php(349): Language->getNamespaces
 * 5) 4 /var/www/[myfolder]/includes/User.php(1241): SearchEngine::searchableNamespaces
 * 6) 5 /var/www/[myfolder]/includes/User.php(4334): User::getDefaultOptions
 * 7) 6 /var/www/[myfolder]/includes/User.php(348): User->loadOptions
 * 8) 7 /var/www/[myfolder]/includes/User.php(328): User->saveToCache
 * 9) 8 /var/www/[myfolder]/includes/User.php(286): User->loadFromId
 * 10) 9 /var/www/[myfolder]/includes/User.php(2073): User->load
 * 11) 10 /var/www/[myfolder]/includes/User.php(981): User->getToken(false)
 * 12) 11 /var/www/[myfolder]/includes/User.php(289): User->loadFromSession
 * 13) 12 /var/www/[myfolder]/includes/User.php(4328): User->load
 * 14) 13 /var/www/[myfolder]/includes/User.php(2227): User->loadOptions
 * 15) 14 /var/www/[myfolder]/includes/context/RequestContext.php(296): User->getOption('language')
 * 16) 15 /var/www/[myfolder]/includes/Message.php(360): RequestContext->getLanguage
 * 17) 16 /var/www/[myfolder]/includes/context/RequestContext.php(377): Message->setContext(Object(RequestContext))
 * 18) 17 [internal function]: RequestContext->msg('pagetitle')
 * 19) 18 /var/www/[myfolder]/includes/context/ContextSource.php(165): call_user_func_array(Array, Array)
 * 20) 19 /var/www/[myfolder]/includes/OutputPage.php(878): ContextSource->msg('pagetitle')
 * 21) 20 /var/www/[myfolder]/includes/Article.php(554): OutputPage->setPageTitle('Main Page')
 * 22) 21 /var/www/[myfolder]/includes/actions/ViewAction.php(44): Article->view
 * 23) 22 /var/www/[myfolder]/includes/Wiki.php(439): ViewAction->show
 * 24) 23 /var/www/[myfolder]/includes/Wiki.php(305): MediaWiki->performAction(Object(Article), Object(Title))
 * 25) 24 /var/www/[myfolder]/includes/Wiki.php(565): MediaWiki->performRequest
 * 26) 25 /var/www/[myfolder]/includes/Wiki.php(458): MediaWiki->main
 * 27) 26 /var/www/[myfolder]/index.php(59): MediaWiki->run
 * 28) 27 {main}

I hope you can help me, I love this extension! Thank you.