why is it not working?

[violet tangle]

on load:
set {voidlevel} to -65
set {worldbordersize} to 100

command /startfun:
permission: op
trigger:
execute console command "/worldborder set 100 0"
execute console command "/worldborder center"
execute console command "/worldborder warning distance 0"
#worldborder done
execute console command "/bossbar add 1 ""Bossbar"""
execute console command "/bossbar set minecraft:1 players @a"
#bossbar done
#Game Loop
broadcast "&e&lGame Started!!!"
wait 5 seconds
loop 300 times:
execute console command "/fill 100 %{voidlevel}% 100 -100 %skript_voidlevel% 100 air"
broadcast "Void Is At %skript_voidlevel%"
execute console command "/bossbar set minecraft:1 name {"text":"%skript_voidlevel%"}"
add 1 to {voidlevel}
wait 2 minutes

[sullen moon]

discord.gg/skript

@violet tangle

[violet tangle]

i tryed that