As far as you don't delete your wallet.dat, the coins aren't lost
There are many threads about that error, you should find them and resolve the problem
Topic: 11db error (Read 839 times)
So I got the 11dbexception error. page not available. I just had a transaction sent over to me but my client was not downloading the new chain. I just kept getting that error. This was my first transaction and I copied my wallet.dat folder. But I am worried about what to do next so that i dont lose my coins.
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