Edit: I solved it for the cost of 0.01.
I will let you guys know what to do in this case:
1. Export your private key.
2. Create a new wallet.
3. Import private key.
4. Now you see your money.
5. I made the error to send 0.01 from the new wallet to the new one and this 0.01 get lost (I am so glad I tried with 0.01, not the whole amount!!)
6. I closed the new wallet and forgot about it.
7. My old wallet is OK now, with the bitcoins there, able to send and receive