Where do i get the "Envato private token" -> i've just a Purchase Code

Hello,

i’ve bought your theme at Themeforest. I just got the Purchase Code an tried to fill the “Envato private token” under Enfold -> Theme Update .

But i got this message:

Last time we checked the token we were not able to connected to Envato:

Purchases could not be accessed
Username could not be accessed (needed for your information only)
E-Mail could not be accessed (needed for your information only)

Following errors occured:

Purchases: Your private token is invalid.
username Your private token is invalid.
email Your private token is invalid.
Purchases: A problem occured accessing your purchases. Unable to check for updates.

Could you please tell me, where i can get this token?