What mods are using? Are you using EUI? Include your logs. Without additional information, it's nigh impossible to understand what's going wrong.
(1) Community Patch
[BNW] Colonialist Legacies - Canadian Dominion (v 2)
[BNW] Colonialist Legacies - Cuba (v 1)
[BNW] Colonialist Legacies - Mexican Republic (v 1)
[BNW] Colonialist Legacies - The Boers (v 1)
[BNW] Colonialist Legacies - The Dene (v 2) (1)
[bnw] colonialist legacies - the inuit (v 3)
[BNW] Colonialist Legacies' Anishinaabe (v 1)
Argentina Civilization~
Bolivia Civilization
Chile Civilization~
Enlightenment Era (v 5)
Ethnic Units (v 31)
Events and Decisions
Historical Religions Complete (BNW or GK) (v 28)
Hypereon's Second French Empire (Napoleon III) (v 1)
India Civilization Pack (v 1)
InfoAddict (v 22)
Ingame Editor (v 39)
JFD's Cities in Development (v 43)
JFD's Cultural Diversity (Core) (v 9)
JFD's Exploration Continued Expanded (v 16)
JFD's The Empire of Great Britain (v 4)
jfd's the empire of japan (meiji) (v 1)
JFD's The Germans (v 2)
JFD's The Holy Roman Empire (v 2)
JFD's The Kingdom of France (v 4)
JFD's The Kingdom of Italy (v 3)
JFD's The Kingdom of Italy (Victor Emmanuel III) (v 1)
JFD's The Nri Kingdom (v 1)
JFD's The Soviet Union (Stalin) (v 13)
JFD's The United States (Teddy Roosevelt) (v 1)
Kongo (Brave New World) (v 44)
MC's Tibetan Civilization
more_luxuries__v_155
Polynesian Civilization Pack (v 1)
Sukritact's Maasai Civilization (v 2)
TarcisioCM - Mongolia (Ghenghis Khan) (v 1) (1)
TarcisioCM - Portugal (João II) (v 1)
TarcisioCM - Spain (Carlos III) (v 1)
The Cherokee (v 2)
Vietnam
Yet (not) Another Earth Maps Pack (v 24) (1)