How to long in to my (old) Yahoo Answers account?

I haven't been on or logged in to my old Yahoo Answers account in almost a year and I recently found out Yahoo Answers is shutting down VERY soon. A year ago, I could've logged in with my username and password but now I have come to find out I need an account key along with my username. I don't have an account key because I wasn't logged in to my account to get one or change one. I don't even really know what an account key is. Can someone please help me figure out what an account key is so I can get a hint or possibly give me advice or send me a link where I can log in using my username and PASSWORD instead? Anything so I can get back in. Please help, I'd love to go back to my old account and get it archived. Thank you!