Missing Sound

I found something in my minecraft log file :

[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.barrel.close
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.barrel.open
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.bell.use
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.bell.resonate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:item.book.page_turn
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:item.book.put
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.blastfurnace.fire_crackle
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.campfire.crackle
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.composter.empty
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.composter.fill
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.composter.fill_success
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.composter.ready
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.crop.break
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:item.crop.plant
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.evoker.celebrate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.aggro
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.ambient
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.bite
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.death
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.eat
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.hurt
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.screech
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.sleep
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.sniff
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.fox.spit
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.grindstone.use
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.ambient
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.attack
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.celebrate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.death
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.hurt
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.step
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.stunned
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.ravager.roar
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.lantern.break
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.lantern.fall
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.lantern.hit
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.lantern.place
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.lantern.step
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.mooshroom.convert
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.mooshroom.eat
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.mooshroom.milk
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.mooshroom.suspicious_milk
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.nether_wart.break
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:item.nether_wart.plant
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.note_block.iron_xylophone
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.note_block.cow_bell
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.note_block.didgeridoo
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.note_block.bit
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.note_block.banjo
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.parrot.imitate.guardian
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.parrot.imitate.panda
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.parrot.imitate.pillager
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.parrot.imitate.ravager
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.pillager.celebrate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.player.hurt_sweet_berry_bush
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:event.raid.horn
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.smoker.smoke
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.sweet_berry_bush.break
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:block.sweet_berry_bush.place
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:item.sweet_berries.pick_from_bush
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:ui.cartography_table.take_result
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:ui.stonecutter.take_result
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:ui.stonecutter.select_recipe
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.celebrate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_armorer
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_butcher
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_cartographer
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_cleric
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_farmer
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_fisherman
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_fletcher
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_leatherworker
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_librarian
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_mason
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_shepherd
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_toolsmith
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.villager.work_weaponsmith
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.vindicator.celebrate
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.ambient
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.death
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.disappeared
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.drink_milk
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.drink_potion
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.hurt
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.no
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.reappeared
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.trade
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.wandering_trader.yes
[15:25:33] [Client thread/WARN]: Missing sound for event: minecraft:entity.witch.celebrate