If the game shuts down, I have found that you have an invalid condition set in the Map/Scenario.
For example, if a map that I made on an Immense sized playing field was loaded into any other mod, it would shut down because it would be invalid condition.
Same would hold true for Techs, units, Civilizations, Leaderheads, and any other property. Perhaps the map you are trying to load belongs to another Mod or has some condition that your game cannot be met?