Cleric's Attire Coffer Help

Good Morning everyone,

After i finished the White Mage quest lvl 50 i got the coffer with the lvl 50 gear, for some reason everytime i click the coffer it says "Unable to use the Cleric's Attire Coffer. You cannot carry more than one item of the unique type".
Is it the Chest Piece lvl 50? Do i need to discard it in order to get the coffer to open and get all items from coffer?

Thanks in advance

Discard or give stuff to your retainers. You can have unique item and your retainer can have the same item. Kind of hard to do anything with it at that point but it will help figure out which item is the issue without getting rid of anything.

The Cleric's Attire Coffer not only contains the iLvl90 artifact Head/Chest/Body/Pants/Boots, but it also contains a Hero's Belt of Healing. If you have one of those, perhaps from a dungeon run or opening an Argute Attire Coffer (SCH) then you won't be able to open the Cleric one.