This screen always pops up. On ''AttributeError'' it also says 'place', 'key item' and stuff like that depending on what action i do, here i tried to open the inventory.
some things i can occasionally do like ignoring that screen when it pops up during a dialogue but i literally cannot open my inventory, sell anything and hover over places on a map.
Did you open your save from earlier than v0.0.4? It might be that we've had an overhaul in v0.0.4 and you'd need a clean save from after that version, maybe try starting a new game?