Age of empires III [STEAM] - Bad key [Error 100], Help me

Some time ago I bought a copy of Age of empires 3 complete collection inside steam, when trying to create an ESO account, it generates the following error:

So it has been impossible for me to create an account, I would like to request help in this aspect.

Help me, plox :smile:

Was it a year ago on Summer sale? If so, check out this thread:

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