Pomoc z rozwiązaniem błędu

Silniki Spigot 1.13.2

Witam, mam takie pytanko.
Chodzi o serwery połączone w bungeecord, mianowicie napisałem skrypt na tzw. "kompas". Po kliknięciu można wybrać tryb serwera. Skrypt działa prawidłowo do momentu kiedy się kliknie na dany tryb..  Podczas ładowanie wywala błedy. Jak mam rozumieć nie rozpoznaje polecenia bungeecord. Chciałbym uzyskać odpowiedz na temat jak to naprawić ? Bądz jakie dodatkowe wtyczki wgrać. Załączam też skrypt do pomocy. 

Can't understand this condition/effect: bungeecord connect player to "pvp" (hub.sk, line 28: bungeecord connect player to "{@1-server}"')
Can't understand this condition/effect: bungeecord connect player to "survival" (hub.sk, line 30: bungeecord connect player to "{@2-server}"')
Can't understand this condition/effect: bungeecord connect player to "serwer3" (hub.sk, line 32: bungeecord connect player to "{@3-server}"')

options:
    compass: heart of the sea named "&8» &6Wybierz Tryb"
    1: brick named "&7GTryb 1"
    2: gold ingot named "&6Tryb 2"
    3: iron ingot named "&7Tryb 3"
    1-server: pvp
    2-server: survival
    3-server: serwer3
on join:
    clear player's inventory
    set slot 4 of player to {@compass}
    set player's current hotbar slot to 4
on right click:
    if player's tool is {@compass}:
        cancel event
        open chest with 1 rows named "&6Wybierz tryb" to player
        wait 1 tick
        loop 9 times:
            set player's current inventory's slot ((loop-number)-1) to gray glass pane named ""
        set player's current inventory's slot 4 to {@2}
        set player's current inventory's slot 2 to {@1}
        set player's current inventory's slot 6 to {@3}
        
on inventory click:
    if inventory name of current inventory of player is "&6Wybierz tryb":
        cancel event
        if clicked slot is 2:
            bungeecord connect player to "{@1-server}"
        if clicked slot is 4:
            bungeecord connect player to "{@2-server}"
        if clicked slot is 6:
            bungeecord connect player to "{@3-server}"