Quote from: nc50lc on March 03, 2020, 03:20:49 AM

Just a reminder to OP: Do not do anything to the data directory unless Bitcoin Core was properly shutdown.
I'll introduce more issues if you delete/rename those files while core is running.

As for the issue, the log says it all, you can follow jackg's reply delete/rename "060915.ldb" and it should work unless there's a hardware issue.

Tried it, and it happened again.
2020-03-05T09:53:42Z UpdateTip: new best=00000000000000063354501938ef92e43215c3933a07d564bd8883118c080292 height=271764 version=0x00000002 log2_work=74.267491 tx=27961792 date='2013-11-27T11:38:09Z' progress=0.054665 cache=43.4MiB(299083txo)
2020-03-05T09:53:42Z Pre-allocating up to position 0x500000 in rev00096.dat
2020-03-05T09:53:42Z Prune: UnlinkPrunedFiles deleted blk/rev (00093)
2020-03-05T09:53:42Z Fatal LevelDB error: Corruption: block checksum mismatch: C:\Users\Michael\AppData\Roaming\Bitcoin\chainstate\012593.ldb
2020-03-05T09:53:42Z You can use -debug=leveldb to get more complete diagnostic messages
2020-03-05T09:53:42Z *** System error while flushing: Fatal LevelDB error: Corruption: block checksum mismatch: C:\Users\Michael\AppData\Roaming\Bitcoin\chainstate\012593.ldb
2020-03-05T09:53:42Z Error: A fatal internal error occurred, see debug.log for details
2020-03-05T09:53:59Z ERROR: ProcessNewBlock: ActivateBestChain failed (System error while flushing: Fatal LevelDB error: Corruption: block checksum mismatch: C:\Users\Michael\AppData\Roaming\Bitcoin\chainstate\012593.ldb (code 0))