Fatal error: Uncaught TypeError: join(): Argument #2 ($array) must be of type ?array, string given in /var/www/html/digihum/plugins/IiifItems/libraries/IiifItems/IiifUtil.php:60 Stack trace: #0 /var/www/html/digihum/plugins/IiifItems/libraries/IiifItems/IiifUtil.php(60): join() #1 /var/www/html/digihum/plugins/IiifItems/libraries/IiifItems/Util/Canvas.php(113): IiifItems_IiifUtil::addDublinCoreMetadata() #2 /var/www/html/digihum/plugins/IiifItems/libraries/IiifItems/Util/Manifest.php(102): IiifItems_Util_Canvas::buildCanvas() #3 /var/www/html/digihum/plugins/IiifItems/controllers/ManifestController.php(28): IiifItems_Util_Manifest::buildItemManifest() #4 /var/www/html/digihum/application/libraries/Zend/Controller/Action.php(516): IiifItems_ManifestController->manifestAction() #5 /var/www/html/digihum/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch() #6 /var/www/html/digihum/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch() #7 /var/www/html/digihum/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(106): Zend_Controller_Front->dispatch() #8 /var/www/html/digihum/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run() #9 /var/www/html/digihum/application/libraries/Omeka/Application.php(73): Zend_Application->run() #10 /var/www/html/digihum/index.php(23): Omeka_Application->run() #11 {main} thrown in /var/www/html/digihum/plugins/IiifItems/libraries/IiifItems/IiifUtil.php on line 60