Help With Enchantments (again..)

{ "description": "hi", "supported_items": "#minecraft:arrows", "weight": 1, "max_level": 1, "min_cost": { "base": 0, "per_level_above_first": 0 }, "max_cost": { "base": 0, "per_level_above_first": 0 }, "anvil_cost": 0, "slots": [ "any" ], "effects": { "minecraft:post_attack": [ { "effect": { "type": "minecraft:run_function", "function": "pack:arrows/ancient_arrow/hit" }, "enchanted": "attacker", "affected": "attacker" } ] } } hello.. again :} litteraly why dosent this run a function when an arrow hits the entity.. there is nothing in the logs.. the file isnt capitolized.