why is my advancement not working?

{   "display": {     "icon": {       "id": "minecraft:stone_sword"     },     "title": "Cave Mobs",     "description": "Kill all types of cave mobs",     "frame": "goal",     "show_toast": true,     "announce_to_chat": true,     "hidden": false   },   "parent": "404:root",   "criteria": {     "cave_mobs": {       "trigger": "minecraft:player_killed_entity",       "conditions": {         "player": {           "type": [             "minecraft:zombie",             "minecraft:skeleton",             "minecraft:spider",             "minecraft:cave_spider",             "minecraft:creeper",             "minecraft:enderman",             "minecraft:bat",             "minecraft:zombie_villager"           ]         }       }     }   } }
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