Solved Problem with skript GUI

[IHaveNoName]

I'm sure this has a simple fix such as downloading the right skQuery version but I cant seem to solve this issue.
Minecraft version: 1.8
Skript Version: 2.2-dev25
Addons: SkQuery, SkRayFall

command /promote <player> <text>:
    description: Promote staff
    permission: promote.staff
    trigger:
        execute command "manudelsub %arg 1% trainee"
        execute command "manudelsub %arg 1% mod"
        execute command "manudelsub %arg 1% srmod"
        execute command "manudelsub %arg 1% admin"
        execute command "manudelv %arg 1% suffix"
        execute command "manuaddsub %arg 1% %arg 2%"
        open chest with 1 rows named "Staff GUI" to %player%

gives me the error:

If I'm using the wrong version of SkQuery pls link me to a working version.

Unrelated:
I want to create a simple if statement to see if an argument is equal to a certain string. I tried doing this:

if {%arg 1%} is "trainee":
    message "Works"

but it doesn't work.
A solution to this would be equally as usesful



thanks

 

[Uzumaki]

 open chest with 1 rows named "Staff GUI" to player

 

[IHaveNoName]

 open chest with 1 rows named "Staff GUI" to player

Oh sorry, I was testing it with %player% to see if it made a difference. It doesnt work with 'player' either

 

[White]

Try making rows singular (row).

 

[IHaveNoName]

Try making rows singular (row).

I had tried that.

 

[Uzumaki]

use tuske guis then.(are better anyway)

 

[IHaveNoName]

use tuske guis then.(are better anyway)

Will do, thanks