Code 2 Error Linking Account

I’m trying to connect my IF account to my google account and I get this message. What should I do or how do I fix it?

This error is shown when you try to link your Infinite Flight account with a Google or Facebook account that’s already used. For further assistance with that error, you need to contact Infinite Flight’s support team at Remember to include as much information about your account as well as the Google or Facebook account you are trying to link with.