Der Zugriff auf die Plugin-Settings erzeugt einen Fehler

[kergomard]

Ich erhalte folgenden Stacktrace when ich auf einem frisch aktualisierten Importerer auf die Plugin-Settings (nicht Cron-Job-Settings!) zuzugreifen versuche:

Whoops\Exception\ErrorException thrown with message "Invalid argument supplied for foreach()"

Stacktrace:
#10 Whoops\Exception\ErrorException in /srv/http/ilias7/Customizing/global/plugins/Services/Cron/CronHook/EventoImport/classes/administration/EventLocationsAdminGUI.php:56
#9 ilErrorHandling:handlePreWhoops in /srv/http/ilias7/Customizing/global/plugins/Services/Cron/CronHook/EventoImport/classes/administration/EventLocationsAdminGUI.php:56
#8 EventoImport\administration\EventLocationsAdminGUI:getEventLocationsPanelHTML in /srv/http/ilias7/Customizing/global/plugins/Services/Cron/CronHook/EventoImport/classes/class.ilEventoImportConfigGUI.php:37
#7 ilEventoImportConfigGUI:performCommand in /srv/http/ilias7/Services/Component/classes/class.ilPluginConfigGUI.php:81
#6 ilPluginConfigGUI:executeCommand in /srv/http/ilias7/Services/UICore/classes/class.ilCtrl.php:217
#5 ilCtrl:forwardCommand in /srv/http/ilias7/Services/Component/classes/class.ilObjComponentSettingsGUI.php:113
#4 ilObjComponentSettingsGUI:executeCommand in /srv/http/ilias7/Services/UICore/classes/class.ilCtrl.php:217
#3 ilCtrl:forwardCommand in /srv/http/ilias7/Services/Administration/classes/class.ilAdministrationGUI.php:246
#2 ilAdministrationGUI:executeCommand in /srv/http/ilias7/Services/UICore/classes/class.ilCtrl.php:217
#1 ilCtrl:forwardCommand in /srv/http/ilias7/Services/UICore/classes/class.ilCtrl.php:178
#0 ilCtrl:callBaseClass in /srv/http/ilias7/ilias.php:23