Skript Yaml Error, Player does not get recognized

Code (Text):

on script load:
    if file "plugins/MythCore/Config.yml" doesn't exist:
        create file "plugins/MythCore/Config.yml"
        set yml value "Prefix" of file "plugins/MythCore/Config.yml" to "&5&lMyth &8➥"
        set yml value "JoinMsg" of file "plugins/MythCore/Config.yml" to "%%player%% &fa intrat pe server."
        set yml value "LeaveMsg" of file "plugins/MythCore/Config.yml" to "%%player%% &fa iesit de pe server."
        set yml value "Sound" of file "plugins/MythCore/Config.yml" to "entity.experience_orb.pickup"
        set yml value "SoundVolume" of file "plugins/MythCore/Config.yml" to 0.5


 
on join:
    set {_JoinMsg} to yaml value "JoinMsg" from "plugins/MythCore/Config.yml"
    set {_Sound} to yaml value "Sound" from "plugins/MythCore/Config.yml"
    set {_SoundVolume} to yaml value "SoundVolume" from "plugins/MythCore/Config.yml"
    set yaml value "%%player%%" from "plugins/MythCore/Config.yml" to player
    set join message to "%{_JoinMsg}%"
    play sound "%{_Sound}%" with volume {_SoundVolume} to the player

When I join on server, tell me: %player% joined server, does not show player name...how to fix?

 

Thanks bro. Also can you show me a code for: when player join first time on server, to show him a message with number that he is joined. Like he is player ten, five, fifty etc. And a command that I can check total player count. Total numbers like

 

Thanks bro!

 

But I have two errors bro:
Can't understand this condition: set {n} to 0 and if {playersnumber::%player%} isn't set. And I want for first join, and how to do command for reset numbers if I want sometimes to do it?

 

https://imgur.com/a/Yq8vtsR still not working...
EDIT: you didn't added a to and space to if %player%... isn't set. Fixed now!

 

Code (Text):

command /test:
    trigger:
        set {playersnumber::%player%} to {_n}
        delete {n}
        message "Player numbers succesfully reseted!"

And when joining again, doesn't show me the message...
And: https://imgur.com/a/Q3ReYry

 

The code still don't working...I tried to fix it, but it won't work to reset, and show me the number...

 

Thanks, and how to do command for reset this?
My code:

Code (Text):

command /test:
    trigger:
        clear {n}
        message "Player numbers succesfully reseted!"

 

Still not...

Code (Text):

on first join:
    if {n} is not set:
        set {n} to 0
    if {playersnumber::%player%} is not set:
        add 1 to {n}
        set {playersnumber::%player%} to {n}
        send "&fYou are the player with number &e%{playersnumber::%player%}%"


command /test:
    trigger:
        delete {n}
        message "Player numbers succesfully reseted!"

 

nop...

Code (Text):

on first join:
    if {n} is not set:
        set {n} to 0
    if {playersnumber::%player%} is not set:
        add 1 to {n}
        set {playersnumber::%player%} to {n}
        send "&fYou are the player with number &e%{playersnumber::%player%}%"


command /test:
    trigger:
        delete {n}
        message "Player numbers succesfully reseted!"