Lost my digg account

Yesterday I cleared my computer's browsing data from the past four weeks. Today when I opened digg, it required a login, so I logged in with my Google account, and then it directed me to this page.

It's a completely new account, not my original one. I only have 2 Google accounts, and I've tried both, but neither has worked. Is there any way to help me recover my old account?

PS: My old account was created just this year.