If I read previous posts correctly Gedemon wants the lua.log to narrow down the problem so here is my lua.log and my issue.

I have have been trying to create a custom map with many civs and leaders. I use mods and have tried the map optimized world and both giant earth. Both will go to loading screen and just before it launches into the custom map i have created it crashes stating one or more startup scripts error. this seems to only happen with custom maps. here is my lua.log in hopes that this problem could be narrowed down. Thanks and apologies if i did not read previous posts correctly.

https://pastebin.com/xHfCXiEU