Solved An internal error occurred while attempting to perform this command by skript

[lordmanu]

hello everyone. i have this problem: basically skript works fine and always, but when i enter the skript that i wrote below it gives me this problem: "An internal error occurred while attempting to perform this command" and i can't solve it. my minecraft version is 1.8.9 since i'm making a skypvp. thanks everyone.

skript:

command /pagapro [<player>] [<number>]:
trigger:
if arg-1 is set:
if arg-2 is set:
if executor's balance is greater than or equal to arg-2:
send "&b&lFIND&f&lSKY &6&lPAY&7: Sono stati rimossi dal tuo conto &a%arg-2%€ &7ed inviati al player &%arg-1% con successo." to executor
make console execute command "/pay %arg-1% %arg-2%"
make console execute command "/eco take %arg-1% %arg-2%"
send "&b&lFIND&f&lSKY &6&lPAY&7: Sono stati aggiunti al tuo conto &a%arg-2%€ &7da parte del player &%arg-1% con successo." to arg-1
else:
send "&cIl tuo conto non dispone di %arg-2% da inviare a %arg-1%" to executor
else:
send "&cUsa questo comando con: /paga (nome player) (quantità)" to executor
else:
send "&cUsa questo comando con: /paga (nome player) (quantità)" to executor


edit: The problem is a server.