Can't equip or unequip any gear on any character

So on my wife's account she was playing and grinding to get to level 83, she got there but not she can't equip any level gear nor can she even unequip her current gear on any character.  Verified files with steam and no issues were found.  Has anyone else had this problem???

delete something in your bags they are full its a bug that's not really a bug its more of a limit in the game