I need help with my rankup skript

[xEmir]

I will add the error screenshot here is the code:
Skript version 2.2 Snapshot
I have vault and SkQuery

command rankup:
    trigger:
        if player's group is "Farmer":
            if %vault_eco_balance% is more than or equal to 50000:
                execute console command "/manuadd %player% miner"
                broadcast "&a%player% &8has leveled up to &8[&2Miner&8]"
            else:
                send "&8<&c!&8> &7You do not have enough money to rankup"
                send "&8<&c!&8> &7Your current balance is &a%vault_eco_balance%"

 

[ShaneBee]

Skript version 2.2 Snapshot

that expression was added in a version that's at least 35 versions ahead of the version you are using:

 

[xEmir]

that expression was added in a version that's at least 35 versions ahead of the version you are using:

View attachment 3785

but the other versions dont work with 1.8 i use 1.8

 

[ShaneBee]

but the other versions dont work with 1.8 i use 1.8

1.8 or 1.8.8?

Skript 2.2dev36 works fine on 1.8.8.
Theres a few things that dont work, since the BukkitAPI didn't contain the things for the syntax to work back in 1.8.8 but overall it seems to work fine.
MANY people are using 2.2dev36 on 1.8.8