“Invalid year” error when setting up Sandbox Teste

Question

Getting a strange error when setting up Sandbox Tester in iTunesConnect. For some reason, iTunesConnects throws an error: "Invalid year". It looks like this:

Oddly I cannot specify a year because it only asks me for month and day:

I don't use the same email I used when creating apple ID and I don't have any +abc in my email address. I tried with gmail.com and hotmail.com but the result was the same in both cases. What is going on?

Answer 1

I have also heard about it, not able to check it right now, check this also iTunesConnect unable to accept invitation - Invalid Year