I cannot use Awakening Skill

Server: NA West Valtan.
Steam account: dangserie.
Character name: RoseBlink.
Class: Soulfist.

Bug: I cannot use any Awakening skills in guardian raids and chaos dungeons. The game said I have already used the skills 3 times even at the beginning of the raids/dungeons.

I took screenshots but new users are not allowed to upload images.

Only to make sure. U do have stones in ur inventory?

Yes, I have bought 99 chaos shards before recent update. However, I will check again when I am ingame next time.

I have checked and it seems that shards I have bought before maintenance disappeared. I purchased again and everything is ok now. Thank you for reminding me.