Mathcad trial licence not working

I'm trying to install the trial version for Mathcad 15, but get an error upon entering my account credentials.

Author

1-Visitor

The error reads as follows in the attached snapshot.

23-Emerald IV

and you'll understand why.

If you want to try Mathcad, the only option you have is to try Prime, current version is 11: https://www.mathcad.com/en/try-and-buy/mathcad-express-free-download

Success!
Luc

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