License restore failed

Felix21

Bit poster
I installed PD 16, and then tried to restore purchased license.
PD asked me to fill in the license, I've filled in; it said the license is upgraded license, then asked me to provide the original one; I provided, then it said the old one is not accepted by license server.
But the 2 licenses were copied correctly from my account information.

Need your help to find out what's wrong, thanks ~
 
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