Scoreboard Prefix Problem

[LoneDragon38]

Hello, so I was skripting a scoreboard. But something weird with this skript below:

set score "%loop-player's coloured prefix%" in sidebar of loop-player to 11

It says "There's no loop that matches ...."

Does anyone can help me to fix this, I would be very appreciated

 

[Tom_V]

Can you post the full script?

 

[Marc]

%loop-player's prefix% should work