I have the exact problem with my main account.I just sent a email to theymos and pmed hilarioisandco hope they unlock it for me...
Hello, I just sent a signed message using my ethereum wallet to theymos. Hopes he read it asap.
Only Cyrus and theymos can unlock your account. You should have sent a pm to
either of them. Both are busy managing the forum and also working on the new forum that we will be transferring to, so expect that your PM might not be read immediately. Also, before sending a PM, read
this post in regards to recovering accounts with lost passwords or hacked.