This issue is caused by your system time being out of sync.

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Symptoms

A time synchronization issue can manifest in different ways:
  • Immediate crash: The loader closes immediately without showing any error message
  • Generic login error: When trying to log in, the loader only shows “Error” with no further details
  • Authentication failure: Login fails even though your credentials are correct

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Solution

1

Open Date & Time Settings

Right-click on the clock in your taskbar and select Adjust date/time.
2

Sync Your Clock

Make sure Set time automatically is enabled, then click Sync now.
3

Verify Synchronization

Check that the displayed time is correct and that the sync was successful.
4

Restart the Loader

Close the loader completely and reopen it.
If the issue persists after syncing, try restarting your computer before reopening the loader.