I've only just considered switching off of Google shit within this last week after Jordan Peterson's GMail removal...so I'm totally new to all the cryptocurrency stuff, I'm trash at file meddling (it took me a year of playing the Minecraft beta before I even considered trying to mod, like...yeah.), and so on.
So now that the background is out of the way and hopefully I've gotten through how completely retarded I am, the problem itself. I just spent a day downloading Bitcoin Core, but as soon as I got to the 90% point, the thing crashed. Fatal Internal Error, followed by a suggestion of opening the debug logs to find out the cause. Sadly, because the menus are obscured by the blockchain update, I can't really navigate said menus for long before it all closes. I have the log opened now however, took a few resets to find it since it crashes again within a minute or so.
I believe this is what you guys are looking for when you ask for the logs' info, but given I'm a worse coder than Karkat Vantas, please let me know what I should give you, if not this.
2017-08-06 04:50:47 Corruption: block checksum mismatch
2017-08-06 04:50:47 *** System error while flushing: Database corrupted
2017-08-06 04:50:53 Failed to connect best blockImported mempool transactions from disk: 0 successes, 0 failed, 0 expired
2017-08-06 04:50:53 tor: Thread interrupt
2017-08-06 04:50:53 torcontrol thread exit
2017-08-06 04:50:53 opencon thread exit
2017-08-06 04:50:53 addcon thread exit
2017-08-06 04:50:53 scheduler thread interrupt
2017-08-06 04:50:53 Shutdown: In progress...
2017-08-06 04:50:53 net thread exit
2017-08-06 04:50:53 msghand thread exit
2017-08-06 04:50:53 Corruption: block checksum mismatch
2017-08-06 04:50:53 *** System error while flushing: Database corrupted
2017-08-06 04:50:57 Shutdown: done