Hey @AVrieling it’s hard to troubleshoot this without seeing the issue, but I’ve a hunch it could be one of two issues.
1. Are you sure the account you connected to the sales extention is the exact same account and email that is set as a super admin? I know myself managing 3 different permission accounts I can sometimes lose track of which account I’m logged into and which account is syncing with HubSpot.
2. Are you an admin on the gmail account? If the above isn’t the case it may be possible your gmail admin hasn’t provided your account with permissions to allow the integration of another system on your gmail account.