Hi aquatic-acroter-2, if you received an authorization failed (invalid account) error message, it’s related to your wrong login details on your DMT5.
You may refer to this post below to know how to log in to your DMT5 account.
If you’re facing the same issue after you have entered the correct login ID and server, please reset your password. You can reset it here.
If the issue is still ongoing, please do reach out to us via LiveChat. We will help you at the earliest!