Hello Travis,
Apologies for the problem regarding your BoldGrid Connect Key and
the error (“API key appears to be invalid!”) that you are seeing. I recommend reinstalling BoldGrid to ensure you are running the latest version, then retrying to enter your Connect Key. If you have tried this already, please email support@boldgrid.com from the email address that you used to receive the Connect Key so that the issue can be investigated in more depth by BoldGrid team.