Thank you for contacting Telerik Support.
I'm sorry to hear about the problems you've experienced with your Sitefinity project, it looks like indeed these issues might be related to the instance deployed on Azure. It would be really helpful if you can assure us that you've followed correctly the steps outlined in this article
from our documentation. Generally the issue you're observing indicates that the resources for that particular Backend page's title cannot be found. Going deeper this could be caused by either improper module initialization, or incorrect licensing, which could bot lead to similar behavior. Can you please try navigating to the Forums backend page and let me know if you're able to open it, or it throws an exception as well, and also if you are observing any other strange behavior patterns when browsing the site backend?
Looking forwards to your reply.
the Telerik team
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