In order to isolate the problem (the same you described), I opened a new map with just the ALIVE REQUIRED, ALIVE AI virtual, and Player Modules. I placed a marker in the city of Agios Dyonisios (in Altis), and I named it AGIOS. Then I added the Civilian Placement and Civilian Population modules: I wrote AGIOS as the marker in the Civilian Placement Module. After this simple setup, I still get the same error. The mods running are CBA+ALIVE. Did you solve the problem?