<p>Immediately after a software upgrade to my iMac, an error message appeared: &quot;Bitcoin Core quit unexpectedly&quot; and I followed the instructions to &quot;reopen&quot; and the error kept repeating. How do I get back on bitcoin core?</p>

CC BY-SA 4.0
2021-01-22T15:58:00.167Z
What is in `debug.log`?
MCCCS
CC BY-SA 4.0
2021-01-22T17:49:45.020Z
Do you have a [backup of your wallet](https://bitcoin.org/en/secure-your-wallet#backup) (or better, many regularly made backups) and a written note of your master private key?
RedGrittyBrick
<bitcoin-core><mac>
How do I solve problem of my iMac now refusing to let me access Bitcoin Core?
Lynn'sTwin
# How do I solve problem of my iMac now refusing to let me access Bitcoin Core?

(Asked by: username_0 on 2021-01-22)

Immediately after a software upgrade to my iMac, an error message appeared: "Bitcoin Core quit unexpectedly" and I followed the instructions to "reopen" and the error kept repeating. How do I get back on bitcoin core?

**Tags:** bitcoin-core, mac

> **Comments:**
> **username_1**: What is in `debug.log`?  
> **username_2**: Do you have a [backup of your wallet](https://bitcoin.org/en/secure-your-wallet#backup) (or better, many regularly made backups) and a written note of your master private key?  

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## 0 answers

