1) Please delete all contents in the following two folders:
• Cache in Documents\My Games\Sid Meier's Civilization 5\cache
• ModUserData in Documents\My Games\Sid Meier's Civilization 5\ModUserData
2) Start a game with Core Mod only, then return to Main Menu.
3) Select the Sapiens Mod (and other compatible Mods), and start the game as normal.
Note: you don't need to do this every time, only when there is a major Mod update.


If you get stuck because you can't click on the "NEXT TURN" button, do the following:
1) Select ANY unit and click on the small arrow next to the Name of the Unit.
3) Give instructions to the newly selected Unit.
3) Repeat until you have assigned an action to all Units.
Now the "NEXT TURN" button should be clickable.