Why I can't use Legendary Experience orb

Why I can't use Legendary Experience orb

My gear are LR and level limit 30 can anyone tell me why I can't use it?

Have u even open the ultimate extension skills in add.skill?

650622976

Have u even open the ultimate extension skills in add.skill?

Idk I think I am not

289220192

Idk I think I am not

There u have ur answer

Join this discord for mre guides or helps
https://discord.gg/bUhnADxbj9