I put my valtan headset in emote storage but i dont know why it disappear now.
I think i transfer tripod from it to my argos set by accident.
Can u pls help me to roll it back 
Thank you very much!
Greetings @taodamthicamchay
Have a warm welcome to our Lost Ark Forum,
Thank you for reaching us out and I do apologize about the unexpected experience you had within your play-through.
Unhappily, Iām afraid to tell you thus far we do not account with a system to recover / reverse deleted items meaning, that unfortunately we are not able to restore nor refund these types of items even if it was not intentional, it was a decision taken on your end.
If you want to avoid this to happen in future cases I do recommend, block the high level, stats and rarity. almost every equipment is lockable within the game.
I hope this information granted you gives a great and helpful insight.
JWarlock 