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Fixed! I will publish a new version on Thursday and from there, it takes anywhere from an hour to a couple of days to get it approved by Google...

Sorry about the delay... things are a little hectic with the world these days... Hope you are safe!

Could you confirm which language you use - I'm pretty sure it's just a matter of date parsing.

Hmm... somebody else reported a similar problem. I will check this shortly.

Make sure you don't have an ad blocker running. Please check in the console if there are any errors and follow the info to check if there are any errors in the background. 

Sadly, it's impossible to do something like this since there's no API to manage DS users.

Users under DS are managed like other documents under Google Docs.