Quote from: HCP on December 13, 2017, 03:58:07 AM

It seems some of your inputs have already been spent... I attempted to broadcast this transaction and got: "Missing inputs (code -25)" Because those inputs are now "missing" (ie. confirmed in other transactions), this transaction is no longer valid. I would suggest the following:

- Make sure Bitcoin Core is fully synced.
- Shutdown Bitcoin Core.
- Make a backup of the wallet.dat
- Start Bitcoin Core using -zapwallettxes command

It should remove ALL transactions from your wallet, then rescan the blockchain for "confirmed" transactions that relate to your wallet addresses. Once it has finished, you should see all your "confirmed" coins... and this "impossible" transaction should no longer appear.

You can then shut down Bitcoin Core and restart normally (ie. WITHOUT the -zapwallettxes command).

Thank you for your reply, I saw this online but I was not sure if I should do it or not.

Right now my btcore wallet show 0 btc available, and the invalid transaction but my blockchain record shows I still have 0.5 btc .

Is there a risk running this command ? after applying this, do you think my btc will show up again on the available section ? Thank you very much