Hi Metindemir,
Welcome to Forum.
Sorry to hear you are locked out.
If you have paid to play on at least one occasion, you should be able to log in again and restart your account.
I believe issues occur when an account has only ever been gifted to buy things and to play. When such an account has been inactive for over 6 weeks, then Achat automatically locks and deletes the account. This is so their servers do not get too bogged down with free user accounts.
Either way, i suggest you contact Support on the menu bar above and see if your account can be re-activated.
And please let us know here, what they advise and how you get on, in case other members have the same issues.
Good Luck