bitcoin core fatal error...

[alred911]

hello there

i got an issue with bitcoin core,
i cannot solve it, i don't undertstand the problem V0.11.1
bitcoin core stop, FATAL ERROR message then im force to close the software
note that i use armory, last version.
i will really appreciate your help, of course i uninstall -reindex already
nothing work HELP


here is the log :

2015-11-18 15:37:01 Opened LevelDB successfully
2015-11-18 15:37:03 LoadBlockIndexDB: last block file = 152
2015-11-18 15:37:03 LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=295, size=52348149, heights=307666...308275, time=2014-06-25...2014-06-28)
2015-11-18 15:37:03 Checking all blk files are present...
2015-11-18 15:37:03 LoadBlockIndexDB: transaction index disabled
2015-11-18 15:37:03 LoadBlockIndexDB: hashBestChain=00000000000000002ec90e38c7aba3aca32633c1f654da026b39fa41ceb87ffe height=308170 date=2014-06-27 21:10:36 progress=0.286645
2015-11-18 15:37:03 init message: Verifying blocks...
2015-11-18 15:37:03 Verifying last 288 blocks at level 3
2015-11-18 15:37:06 No coin database inconsistencies in last 30 blocks (13252 transactions)
2015-11-18 15:37:06  block index            5359ms
2015-11-18 15:37:06 init message: Loading wallet...
2015-11-18 15:37:06 nFileVersion = 110200
2015-11-18 15:37:06 Keys: 102 plaintext, 0 encrypted, 102 w/ metadata, 102 total
2015-11-18 15:37:06  wallet                    9ms
2015-11-18 15:37:06 init message: Activating best chain...
2015-11-18 15:37:06 ERROR: CheckProofOfWork(): nBits below minimum work
2015-11-18 15:37:06 ERROR: ReadBlockFromDisk: Errors in block header at CBlockDiskPos(nFile=152, nPos=51373615)
2015-11-18 15:37:06 *** Failed to read block

[achow101]

You have a block corruption problem. Find the data directory and delete the blocks and chainstate directory inside of it. It will force a complete resync of Bitcoin core. You will need to wait a few hours for it to finish. That should fix your problem.

[shorena]

If you use windows you might also want to update to 0.11.2

Windows bug fix for corrupted UTXO database on unclean shutdowns
----------------------------------------------------------------

Several Windows users reported that they often need to reindex the
entire blockchain after an unclean shutdown of Bitcoin Core on Windows
(or an unclean shutdown of Windows itself). Although unclean shutdowns
remain unsafe, this release no longer relies on memory-mapped files for
the UTXO database, which significantly reduced the frequency of unclean
shutdowns leading to required reindexes during testing.

[achow101]

2015-11-18 21:32:35 Unable to open file C:\Users\pasl\AppData\Roaming\Bitcoin\blocks\blk00032.dat
2015-11-18 21:32:35 ERROR: ReadBlockFromDisk: OpenBlockFile failed for CBlockDiskPos(nFile=32, nPos=48263146)

The problem is from these lines. Bitcoin Core cannot read one of the blk files, which is probably corrupted. Do you have any antivirus that is running that could be accessing those files at the same time that Bitcoin Core is reading them? Try disabling and adding the data directory as an exception to any antivirus that you currently have running.

[achow101]

The only other thing I can think of here is hardware error. Since Bitcoin Core is very hardware intensive, you could have a hardware failure somewhere. Try running some hardware diagnostics. You should be able to access them from the BIOS.

Also, check that you disabled all of the antivirus software. Not just the one you installed but also Windows Defender which comes with all new versions of windows AFAIK.