1. Name tags are not enabled in your game settings. Please enable the name tag in the game settings.
2. Your skin may not support name labels. Please check whether your skin supports name labels.
3. Your name tag may have been deleted or changed. Please check that your name label is correct.
4. Your game may need to be updated. Please make sure that your game is the latest version.
If the above methods can't solve the problem, please try to reinstall the game or contact the game customer service for help.