Hi,

I started this thread here https://bitcointalk.org/index.php?topic=5297530.msg55794505

And have managed to follow those instructions as per below.

I've got a 2013 wallet on an old PC. Around that time I joined BTC guild and did a little mining. I cannot remember how long I did it for. I'm also not sure if the satoshi went to the wallet.dat file or into the guild under my username.

The old PC is not working properly, so I copied the wallet.dat to a new PC. Downloaded BitcoinCore, updated the blockchain, and then copied the wallet.dat into the bitcoin wallet folders.

When I try to view the wallet after it says Loading blocks
I get this error, then it shuts down.
http://prntscr.com/vznvx8

What should I do?

Thanks