All three chest is opened I still get the message I still need a base.
I actually opened all three chest before I got to evil mode.
Not that is needed I restarted the game and played it 3 new games last few days to play all 3 evil mode character for the 1st game I had that problem I still have that saved in slot 1 quest was not completed and all three chest was opened so couldn't open the chest again thus unable to complete the quest at all.