problem with treasure chest

I have a lvl 4 chest i got one day and i grew a lvl, then i was going to upgrade it and i dont have it anymore, so then i go to see what i can sell and i found a lvl 4 chest but it is not found under treasure, i can only sell it

Sounds like you have it listed for sale in the market. Cancel the listing and you should get it back into the treasure menu.

I pretty much have the same problem... I think what the other player meant is what's going on with me. As I open my inventory, I dont see anything.. I know I have a couple of items there.. and they are just not visible. I used to have a book level 1 and 30 gold thingies to update stuff and they disappeared. I got a Chest level 2 and it doesnt show in my inventory, the Chest level is only visible when I click on Marketplace, then I click on Sell on top where it lists the items I have that can be sold. I've already sent a message to support, and they know about this bug.. but nothing has been done to solve it yet...

If I do acquire an armor or sword or any equipable items, I wont be able to wear them because I cannot "see" them in my inventory.

Please advise.

I've reinstalled the game and problem was solved for now