How do I stop anvil saying too expensive?

How do I stop anvil saying too expensive? Players can bypass the expensive caps for the Minecraft anvil by changing the repair cost of the item in the game or by using an external app to reach the player’s inventory and modify the repairing cost of the anvil. You can also block the data commands for this purpose.

Players can bypass the expensive caps for the Minecraft anvil by changing the repair cost of the item in the game or by using an external app to reach the player’s inventory and modify the repairing cost of the anvil. You can also block the data commands for this purpose.