Bugs pertaining to the recent summer event

Hi, my character name is winson100 and I encountered a few bugs regarding the summer event.

1) I cannot get the cape from Agent P. Earlier on, when I talked to Agent P to get the cape, my equipment inventory is full so I couldn't receive it. After I cleared the equipment inventory and talk to Agent P again, she said that she has given me the cape and refused to give me, but I did not receive the cape.
Poof note: Fixed & refunded

2) I got the Icebox from mobs and also the Secret Box from daily event quest. When I double-click on them, I can't open them and a message pop out asking me to check is my inventory full or not. My inventory is not full and has a lot of spaces. I just couldn't open the boxes.

Please help me as soon as possible.









Please check if your inventory is full when double-clicked on the boxes.