Hi Infixo, I need your help. Errors 1919,1945,962 from realstrategy.lua, my lua log is filled with them. I added a custom policy through sql and implemented it in your code, is that the issue here? Policy is named LAND_PROD_1, you can find how I implemented the policy to your code in the params.sql that I uploaded with logs. It gives 50% production toward siege and cavalry units. Looking at the realstrategy.lua these seem to be about naval strategies, I didn't notice problems in game as I was playing with Mongolia. https://easyupload.io/h84i4y , I uploaded my database, modding and lua logs along with the edited params.sql from your mod. Standard size Terra map with standard settings, deity difficulty. Barbarian Clans and Dramatic Ages enabled. Persia, Eleanor France, Mongolia, Pericles Greece, Poland, Georgia, Gran Colombia, Byzantium was in the game. Hope it helps.