<p>To fix this problem you will need to reindex. You have already begun that process by delete the <code>chainstate</code> folder. Bitcoin Core will appear as if it is syncing from scratch, but it is not. It is simply reading through all of the block files already on disk and building its databases. If the reindex does not fix your problems, then you may need to actually resync the blockchain, and if that also fails, then you likely have a hardware error.</p>

CC BY-SA 4.0
2021-03-13T11:46:59.540Z
Hardware error??
MadeInDreams
CC BY-SA 3.0
2017-07-12T05:59:06.490Z
2017-07-12T05:59:06.490Z
Ava Chow
<p>Bitcoin 0.14.1
Windows 10 Home v. 1703
Bitcoin Core keeps coming up with the error: "error reading from database, shutting down". I've tried deleting the one and only file in the database folder under J:\Users custom made\James\AppData\Roaming\Bitcoin latest\database and restarting the computer, but the same error occurred after the app loaded and was showing the sync progress bar for a minute or so, as previously when the issue occurred today. I am having a similar issue with the Ethereum Mist program, where it crashes after running for a short time. The error on that app also mentioned the filepath to the chaindata. Similarly, I deleted all the chaindata, restarted and the program now has been syncing for many minutes, however it seems like it has started syncing from scratch rather than from where it was up to previously (close to 100%, with only a few thousand blocks left). The debugger for the error in Bitcoin qt in Visual Studio Community says nothing:</p>

<p><a href="https://i.sstatic.net/sAmX8.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/sAmX8.png" alt="Debug Bitcoin-qt crash Visual Studio"></a></p>

CC BY-SA 3.0
2017-07-12T05:58:39.750Z
Can you post your debug.log file?
Ava Chow
<bitcoin-core>
Bitcoin Core keeps coming up with the error: "error reading from database, shutting down"
James Ray
# Bitcoin Core keeps coming up with the error: "error reading from database, shutting down"

(Asked by: username_0 on 2017-07-09)

Bitcoin 0.14.1
Windows 10 Home v. 1703
Bitcoin Core keeps coming up with the error: "error reading from database, shutting down". I've tried deleting the one and only file in the database folder under J:\Users custom made\username_0\AppData\Roaming\Bitcoin latest\database and restarting the computer, but the same error occurred after the app loaded and was showing the sync progress bar for a minute or so, as previously when the issue occurred today. I am having a similar issue with the Ethereum Mist program, where it crashes after running for a short time. The error on that app also mentioned the filepath to the chaindata. Similarly, I deleted all the chaindata, restarted and the program now has been syncing for many minutes, however it seems like it has started syncing from scratch rather than from where it was up to previously (close to 100%, with only a few thousand blocks left). The debugger for the error in Bitcoin qt in Visual Studio Community says nothing:

[![Debug Bitcoin-qt crash Visual Studio](https://i.sstatic.net/sAmX8.png)](https://i.sstatic.net/sAmX8.png)

**Tags:** bitcoin-core

> **Comments:**
> **username_1**: Can you post your debug.log file?  

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## 1 answers

### Answer by username_1 on 2017-07-12. Score: 3

To fix this problem you will need to reindex. You have already begun that process by delete the `chainstate` folder. Bitcoin Core will appear as if it is syncing from scratch, but it is not. It is simply reading through all of the block files already on disk and building its databases. If the reindex does not fix your problems, then you may need to actually resync the blockchain, and if that also fails, then you likely have a hardware error.

> **Comments:**
> **username_2**: Hardware error??  

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