Beryl Ward Library Secret Room

[Zero0]

I cant open the secret room at all despite many attempts, i already completed Devon Scope, the kecleons gang n shiny one. i also took Treeko. Does anyone know how to solve this? 

[Rendolf]

Do you have the right code from the Subseven Sanctum?

 

It should be 

Spoiler

Green, Red, Purple, Yellow, Blue, White

 

[Zero0]

yes i did but door still remain stuck