Based on the error message you received, it seems that an unexpected error occurred while training your custom model. This error message is not very specific, so it can be difficult to determine the exact cause of the issue. However, there are a few potential solutions that you can try to resolve this error:
- Ensure that your Azure subscription is active and that you have sufficient resources to train your custom model.
- Please make sure all input requirements as mentioned here.
- Try training your custom model again and see if the error persists. If the error persists, try reducing the number of labeled samples (possibly 5).
If you still face the issue, I request you to raise a support case through Azure portal.
I hope this helps! Thank you.