Aternos keeps deleting config lines

Hello, i need some help with the SkillAPI, I cant use the skill cause everytime i reload the skill line keeps getting remove in the config file. No error in log.

This is the skill line before reloading the console.

[Blocked Image: https://media.discordapp.net/attachments/576183990894198784/631497595323416576/unknown.png]

This is after reloading. It removes the skill

[Blocked Image: https://media.discordapp.net/attachments/576183990894198784/631497208260198421/unknown.png]

Quote from Mc88Donalds|Julian

if you reload the website or restart the server?

when i restart the server or reload lines are missing

Quote from Mc88Donalds|Julian

is the server running while you change this?

yes and it saves but when i start the server the lines is removed again

Quote from Mc88Donalds|Julian

stop the server then change it

i tried that already :((