I have an add-on that uses several OpenSocial views to display custom content in Jive. However, since today these views are no longer rendered inside the Jive Developer Sandbox. Instead I get a 403 and the error message "Cannot render an application without installing it first" (see screenshot below). I've already tried to uninstall the add-on and reinstall it, but that didn't resolve the issue.
Could somebody please have a look at that? Thanks!