I have a full set of five keys for opening chests and they display an error message when I try to use them. They stay in my inventory and if i am away from the game for a while they will pop up a message saying that there are chests I could be opening, I even got one coming here to type up this message. They vanish after a good amount of time leaving me with nothing.
I have emailed about this the first time my keys gave me error messages and then vanished and got no reply, no remedy.
Below is the image of the keys and an error message. I would like to get to actually use all my keys. Please let me use my malfunctioning keys.