Hello davey60, thank you for posting on our help forum.
Welcome to our community where we all assist eachother, we're eager to assist you with this issue.
Sorry to hear you have trouble logging into Sky Sports with your VM account details, have you registered your device previously on our TV Go App so you can watch Sky Sports on it?
Please, visit this page here for all info on how to do this, if not already.
Also, could you please check and let us know if the same error comes up when trying this on another registered device or different browser, to see if it works there?
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