Today is 7 September 2016
I was having this same problem with my Gracenote TV Guide information here in the UK. The Preference Pane for Guide Services was saying my login and password were wrong.
I followed SpiceWare's advice and created a new account. It recognised me and had my original Key already there in my new account.
Adding to SpiceWare's advice (and reiterating ChrisMc's advice) :
Once you have created a new account on Geniatech's website - then go to EyeTV>Preferences>Guide and re-enter your new username/email and password. EyeTV then will show your accurate Gracenote/TV Guide subscription and expiration date.
Thanks everyone