PickUpInventoryItem from insecure code
 

what is this? next time i tried to pickup item after reopening bank = error gone

all was done by hands, E button

Any addons activated? Test which addon causes it.
Start with inventory related addons adding context menu entries or changing the inventory rows.
I remember there was some addon causing this if you did use the keybind E in the bank without having opened the inventory before the bank was opened (after login/reloadui).

No addons activated -> /bug ingame and tell ZOs