Is this a error, if it is, how to fix it ?

[jade jungle]

Code works fine but when i break a block it shows that

[Scripting][error]-TypeError: cannot read property 'typeId' of undefined at <anonymous> (enchant_shop.js:37)

[meager pebble]

That because your if still run. Use ? before typeId

world.events.entityHit.subscribe(({entity, hitEntity}) => {
  if (hitEntity?.typeId == "npc:blacksmith") {
      es(entity)
  }
});