Common fixes for authentication and backend validation errors.
These errors are usually caused by backend validation failing.
It can be a temporary service issue.
Wait 5–10 minutes.
Try again once.
Verify you are using the correct account.
Re-open the loader after signing in.
Turn off VPN.
Turn off any proxy tools.
Retry.
Restart your PC.
Run the loader as normal.
Contact server staff.
Send the error code and your username.
Last updated 4 days ago
