Open Sign GUI not working

[adriancll]

I am trying to make a bank plugin where you can withdraw and deposit money into the bank.

I am going to use a sign GUI to get the player's input, with skEssentials

Plugins:

SkEssentials v1.0.5

skRayFall v1.9.28

SkQuery v4.1.10

However, it shows up with this error:

Can't understand this condition/effect: open sign gui for player with lines "Enter Number:", "", "", ""

Documentation: https://skripthub.net/docs/?id=10007

Here is my code:

on inventory click:
    if name of event-item is "§6Withdraw Coins":
        open sign gui for player with lines "Enter Number:", "", "", ""

Any help would be appreciated!

[WorseKD1]

i tried to change the text and other stuff, but nothing worked, i found this forum post:

but that also didn't work... the only thing i could think of is that  is outdated. When doing /plugins and hovering SkEssentials it says  
might just be outdated?

[WorseKD1]

i found this:
https://forums.skunity.com/threads/opening-a-sign-to-a-player.14839/
dont know how it works, but maybe it can help you?