Fatal error when exit my wallet, what can it be?

[Hanslo]

2016-11-11 20:34:01 GUI: Platform customization: "windows"
2016-11-11 20:34:01 GUI: PaymentServer::LoadRootCAs: Loaded  43  root certificates
2016-11-11 20:34:02 UpdateTip: new best=0000000000000000011e49443a1af3c5a9d76fcf9f2dab418845f0154e40b150 height=438427 version=0x20000000 log2_work=85.528867 tx=169930795 date='2016-11-11 17:45:06' progress=0.999950 cache=26.8MiB(8087tx)
2016-11-11 20:34:02 UpdateTip: new best=000000000000000001e047f434e56a9e3a490729bf1fa129aa08565465c5d73d height=438428 version=0x20000000 log2_work=85.528896 tx=169931880 date='2016-11-11 17:50:12' progress=0.999951 cache=29.1MiB(10269tx)
2016-11-11 20:34:02 receive version message: /Satoshi:0.9.99/: version 70002, blocks=-1, us=[2001:0:5ef5:79fd:24ba:1f45:a322:8ce1]:8333, peer=1
2016-11-11 20:34:03 UpdateTip: new best=0000000000000000002ca4b77c4e038dd1dcb2d1761bd4928cd39ce48da7582a height=438429 version=0x20000000 log2_work=85.528924 tx=169934186 date='2016-11-11 18:11:23' progress=0.999958 cache=37.6MiB(14938tx)
2016-11-11 20:34:06 UpdateTip: new best=000000000000000001b828ad07e36183a7a735e5a10993fee27da3c214967ab2 height=438430 version=0x20000000 log2_work=85.528952 tx=169936568 date='2016-11-11 18:26:58' progress=0.999962 cache=40.2MiB(19862tx)
2016-11-11 20:34:06 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438444, us=92.221.115.30:59584, peer=2
2016-11-11 20:34:07 UpdateTip: new best=0000000000000000002c2dfc202e7ef87e5ed97d684940663e7494ee64dc382a height=438431 version=0x20000000 log2_work=85.52898 tx=169938883 date='2016-11-11 18:51:26' progress=0.999970 cache=43.2MiB(23666tx)
2016-11-11 20:34:09 UpdateTip: new best=0000000000000000026fb1cb80fa3ac93e7be2351195bb1fc6d00ae53ac2838e height=438432 version=0x20000000 log2_work=85.529009 tx=169941714 date='2016-11-11 18:57:33' progress=0.999971 cache=46.1MiB(28923tx)
2016-11-11 20:34:10 UpdateTip: new best=00000000000000000243f65e1a16a6f38c07d0fab3c362b389c1e507247e6e8d height=438433 version=0x20000000 log2_work=85.529037 tx=169944309 date='2016-11-11 18:58:21' progress=0.999972 cache=60.0MiB(33663tx)
2016-11-11 20:34:11 UpdateTip: new best=000000000000000003fbe52d255bd08a7dbd90fb32962ad3607a3eefbe64e903 height=438434 version=0x20000000 log2_work=85.529065 tx=169946147 date='2016-11-11 19:02:15' progress=0.999973 cache=65.1MiB(37408tx)
2016-11-11 20:34:12 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438444, us=92.221.115.30:59586, peer=3
2016-11-11 20:34:12 P2P peers available. Skipped DNS seeding.
2016-11-11 20:34:12 dnsseed thread exit
2016-11-11 20:34:13 UpdateTip: new best=0000000000000000014a98bb569dcef643e04598894d3818cd5e0b1b57016430 height=438435 version=0x20000000 log2_work=85.529093 tx=169947833 date='2016-11-11 19:09:32' progress=0.999975 cache=75.2MiB(41245tx)
2016-11-11 20:34:14 UpdateTip: new best=0000000000000000039a0d16ad9d38ace0dd76caa2f53ee797ee2c0459b98faf height=438436 version=0x20000000 log2_work=85.529122 tx=169950688 date='2016-11-11 19:27:07' progress=0.999980 cache=80.3MiB(45820tx)
2016-11-11 20:34:15 UpdateTip: new best=00000000000000000428ab8737a68bcbd5cffaadda04a423933896475d0a0e30 height=438437 version=0x20000000 log2_work=85.52915 tx=169952946 date='2016-11-11 19:35:37' progress=0.999983 cache=86.1MiB(49385tx)
2016-11-11 20:34:16 UpdateTip: new best=0000000000000000009bf5d049f100dc5c620582f1afcf20e82a1b40168c88e0 height=438438 version=0x20000000 log2_work=85.529178 tx=169955434 date='2016-11-11 20:02:13' progress=0.999991 cache=88.4MiB(53703tx)
2016-11-11 20:34:16 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438444, us=92.221.115.30:59588, peer=4
2016-11-11 20:34:18 UpdateTip: new best=0000000000000000002f91fcaac28a6b3785bba88699aaf95bf48d95371a2a7c height=438439 version=0x20000000 log2_work=85.529206 tx=169958196 date='2016-11-11 20:12:45' progress=0.999994 cache=96.3MiB(58418tx)
2016-11-11 20:34:20 UpdateTip: new best=000000000000000001542e46acf8bd8901baae7dfa47f44950c48b139c88371a height=438440 version=0x20000000 log2_work=85.529235 tx=169959484 date='2016-11-11 20:15:51' progress=0.999995 cache=126.1MiB(62820tx)
2016-11-11 20:34:21 tor: Thread interrupt
2016-11-11 20:34:21 torcontrol thread exit
2016-11-11 20:34:21 scheduler thread interrupt
2016-11-11 20:34:21 addcon thread interrupt
2016-11-11 20:34:21 net thread interrupt
2016-11-11 20:34:21 opencon thread interrupt
2016-11-11 20:34:21 ProcessMessages: advertising address [2001:0:5ef5:79fd:24ba:1f45:a322:8ce1]:8333
2016-11-11 20:34:21 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438444, us=92.221.115.30:59592, peer=5
2016-11-11 20:34:21 msghand thread interrupt
2016-11-11 20:34:21 Shutdown: In progress...
2016-11-11 20:34:21 StopNode()
2016-11-11 20:34:23 Corruption: block checksum mismatch
2016-11-11 20:34:23 *** System error while flushing: Database corrupted
2016-11-11 20:34:41 Shutdown: done

[shorena]

-snip-

Code:

2016-11-11 20:34:23 Corruption: block checksum mismatch
2016-11-11 20:34:23 *** System error while flushing: Database corrupted
2016-11-11 20:34:41 Shutdown: done

Did you make a backup of the synced database this time?

[Hanslo]

-snip-

Code:

2016-11-11 20:34:23 Corruption: block checksum mismatch
2016-11-11 20:34:23 *** System error while flushing: Database corrupted
2016-11-11 20:34:41 Shutdown: done

Did you make a backup of the synced database this time?

Yes, but there is no problem to start the wallet.

[shorena]

-snip-

Code:

2016-11-11 20:34:23 Corruption: block checksum mismatch
2016-11-11 20:34:23 *** System error while flushing: Database corrupted
2016-11-11 20:34:41 Shutdown: done

Did you make a backup of the synced database this time?

Yes, but there is no problem to start the wallet.

hmm, the message suggests that the database is corrupted again.

[Hanslo]

Have been ok for some days now, but yesterday it start to fail again. Was away from my computer a couple of hour and when I went back there was an error.

2016-11-12 19:07:24 AdvertiseLocal: advertising address 92.221.115.30:8333
2016-11-12 19:07:27 UpdateTip: new best=0000000000000000010da44e2ec140d1612ce7038e78bb7f756b770f1b7c5cb4 height=438583 version=0x20000000 log2_work=85.53327 tx=170156352 date='2016-11-12 17:07:28' progress=0.999965 cache=90.6MiB(74746tx) warning='1 of last 100 blocks have unexpected version'
2016-11-12 19:07:29 UpdateTip: new best=000000000000000003b0051ac9037f7c1989f965a187656b54dcddd241d47bf4 height=438584 version=0x20000000 log2_work=85.533298 tx=170158138 date='2016-11-12 17:08:01' progress=0.999965 cache=94.0MiB(78528tx) warning='1 of last 100 blocks have unexpected version'
2016-11-12 19:07:29 ProcessMessages: advertising address [2001:0:9d38:6ab8:18ed:237:a322:8ce1]:8333
2016-11-12 19:07:29 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438600, us=92.221.115.30:49189, peer=10
2016-11-12 19:07:29 AdvertiseLocal: advertising address [2001:0:9d38:6ab8:18ed:237:a322:8ce1]:8333
2016-11-12 19:07:30 UpdateTip: new best=0000000000000000025e24e7cf970ed267d1d8fa9dc614850069c7158639954e height=438585 version=0x20000000 log2_work=85.533327 tx=170160224 date='2016-11-12 17:21:28' progress=0.999969 cache=95.9MiB(81524tx) warning='1 of last 100 blocks have unexpected version'
2016-11-12 19:07:30 ProcessMessages: advertising address [2001:0:9d38:6ab8:18ed:237:a322:8ce1]:8333
2016-11-12 19:07:30 receive version message: /Satoshi:0.13.1/: version 70014, blocks=438600, us=92.221.115.30:49207, peer=11
2016-11-12 19:07:30 AdvertiseLocal: advertising address 92.221.115.30:8333
2016-11-12 19:07:31 LevelDB read failure: Corruption: block checksum mismatch
2016-11-12 19:07:31 Corruption: block checksum mismatch
2016-11-12 19:07:54 Error reading from database: Database corrupted