1) Make sure you run the mod on a Clean Install of Diplomacy 1.34.
2) Do not overwrite any previous version of SoA 2. 0.5D.1 is a full install.
3) Do not enable any other mods with SoA 2. SoA 2 is stand alone, and WILL CRASH if you enable other mods like Distant Stars with it.
4) Delete your Ironclad Games folder, and run vanilla Diplomacy one time (to automatically create a new ironclad games folder) before you install the mod. This will make sure you have no older incompatible files loaded.