Here are some quick troubleshooting steps to help fix Error Code 300031 in Diablo 4.

The error code 0xc0000005 indicates an Access Violation or a memory-related issue. However, when it occurs with the Epic Games launcher, it is unable to access the memory or a specific memory address.

If you see Black Desert Online (BDO) Error Code 5, try the solutions mentioned in this post to resolve the issue.