Why Studio One 3 forget my product key for Profensional and run as Prime now?

Use a MacBook Pro OS Sierra 10.12.6

Activeted Studio One 3 Pro 17.3.2017 run now as Prime again.

If I want to activate it again the Popup for email and password comes and after try to login the is another popup with the message Pruduct doesen't exist! And if I try this with Offline modus and downloaded Productlicence the same message pop up.

What can I do to not loose one of my 5 (4 one was activated)) licences?

Best Ro

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