The bug

When using the /enchant command on an item that that command will fail on, the error message will contain the item's name in the server's language, not in the client's language.

To reproduce

1. Player 1 opens a world to LAN
2. Player 1 sets language to Deutsch (Deutschland)
3. Player 2 joins the LAN world
4. Player 2 sets language to English (US)
5. Player 2 runs /give @s diamond_ore
6. Player 2 selects the diamond ore
7. Player 2 runs /enchant @s silk_touch
   → The following error message is displayed:

   Diamanterz cannot support that enchantment
   

Other commands might potentially be affected as well, though I wasn't able to find any other feedback messages that are.