Most likely you entered the account details incorrectly - if the email is wrong just create a new account with the right details (when DIM connects to the store it uses the details you enter to log-in, you aren't creating a new account on the site each time you set an account up in the Install Manager).
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Is this the first time you're using DAZ Install Manager, or has it worked fine in the past?
yes first time
sorry for the late reply,tell me whats the problem???
Most likely you entered the account details incorrectly - if the email is wrong just create a new account with the right details (when DIM connects to the store it uses the details you enter to log-in, you aren't creating a new account on the site each time you set an account up in the Install Manager).