[2125690.374] [Gameplay]: In XMLSerializer while updating table Players from file [STR_ARGENTINA]_Bonus_Config.xml.
[2125690.412] [Gameplay] ERROR: only a single result allowed for a SELECT that is part of an expression
[2125690.673] [Gameplay] ERROR: UNIQUE constraint failed: Modifiers.ModifierId
[2125690.673] [Gameplay] ERROR: UNIQUE constraint failed: Modifiers.ModifierId
[2125693.822] [Gameplay] ERROR: no such table: LocalizedText
[2125693.833] [Gameplay] ERROR: no such table: LocalizedText
[2125693.848] [Gameplay] ERROR: UNIQUE constraint failed: Building_YieldChanges.BuildingType, Building_YieldChanges.YieldType
[2125693.848] [Gameplay] ERROR: UNIQUE constraint failed: Building_YieldChanges.BuildingType, Building_YieldChanges.YieldType
[2125699.412] [Gameplay] ERROR: UNIQUE constraint failed: AiOperationTypes.OperationType
[2125699.412] [Gameplay] ERROR: UNIQUE constraint failed: AiOperationTypes.OperationType
[2125699.469] [Gameplay] ERROR: UNIQUE constraint failed: Requirements.RequirementId
[2125699.469] [Gameplay] ERROR: UNIQUE constraint failed: Requirements.RequirementId
[2125699.912] [Gameplay] ERROR: UNIQUE constraint failed: Building_GreatPersonPoints.BuildingType, Building_GreatPersonPoints.GreatPersonClassType
[2125699.912] [Gameplay] ERROR: UNIQUE constraint failed: Building_GreatPersonPoints.BuildingType, Building_GreatPersonPoints.GreatPersonClassType
[2125700.053] [Gameplay] ERROR: FOREIGN KEY constraint failed
[2125700.053] [Gameplay] ERROR: FOREIGN KEY constraint failed
[2125700.053] [Gameplay]: Validating Foreign Key Constraints...
[2125700.063] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2125700.063] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes

Database log ^

The new fossil great works seem to be the issue, @Spartak. Did this crash in the menu or did you get an unhandled exception? In either case, it looks like the .sql is not being read correctly. Argentina is loading as expected on my machine. Maybe manually downloading from Nexus Mods and unsubscribing from Steam could help.

It's giving that "one or more mods failed loading, please disable mods" message

[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.704] [Gameplay] ERROR: Invalid Reference on GreatWorks.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.705] [Gameplay] ERROR: Invalid Reference on GreatWork_ValidSubTypes.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.705] [Gameplay] ERROR: Invalid Reference on GreatWork_ValidSubTypes.GreatWorkObjectType - "GREATWORKOBJECT_STR_FOSSIL" does not exist in GreatWorkObjectTypes
[2203070.732] [Gameplay]: Failed Validation.
[2203073.008] [Localization] ERROR: UNIQUE constraint failed: LocalizedText.Language, LocalizedText.Tag
[2203073.008] [Localization]: While executing - 'insert into LocalizedText('Tag', 'Language', 'Text') values (?, ?, ?);'
[2203073.008] [Localization]: In XMLSerializer while inserting row into table insert into LocalizedText('Tag', 'Language', 'Text') with values (LOC_DIPLO_DENOUNCE_REASON_FROM_AI_LEADER_ANY_REASON_DP_NEW_WORLD_ORDER_REASON_TRADE_PENALTY, en_US, (You are trading with them.), ).
[2203073.008] [Localization]: In XMLSerializer while updating table LocalizedText from file DPFDR_GameText.xml.
[2203073.008] [Localization] ERROR: UNIQUE constraint failed: LocalizedText.Language, LocalizedText.Tag
[2203073.156] [Configuration] ERROR: no such table: CivicModifiers
[2203073.156] [Configuration]: In Query - insert into CivicModifiers('CivicType', 'ModifierId') values (?, ?);
[2203073.156] [Configuration]: In XMLSerializer while updating table CivicModifiers from file GameData1.xml.
[2203073.270] [Configuration] ERROR: no such table: Types
[2203073.270] [Configuration]: In Query - insert into Types('Type', 'Kind') values (?, ?);
[2203073.270] [Configuration]: In XMLSerializer while updating table Types from file DPTojo_LeaderAbility.xml.
[2203073.270] [Configuration] ERROR: no such table: Types
[2203073.270] [Configuration]: In Query - insert into Types('Type', 'Kind') values (?, ?);
[2203073.270] [Configuration]: In XMLSerializer while updating table Types from file DPTojo_Unit.xml.
[2203073.305] [Configuration] ERROR: no such table: CityNames
[2203073.337] [Configuration] ERROR: no such table: FavoredReligions
[2203073.362] [Configuration] ERROR: NOT NULL constraint failed: Players.CivilizationType
[2203073.362] [Configuration]: While executing - 'insert into Players default values;'
[2203073.362] [Configuration]: In XMLSerializer while updating table Players from file [STR_ARGENTINA]_Bonus_Config.xml.
[2203073.362] [Configuration] ERROR: NOT NULL constraint failed: Players.CivilizationType
[2203073.369] [Configuration] ERROR: no such table: AiListTypes
[2203073.370] [Configuration] ERROR: no such table: Types
[2203073.370] [Configuration] ERROR: no such table: Types
[2203073.371] [Configuration] ERROR: no such table: CivilizationTraits
[2203075.685] [Configuration]: Validating Foreign Key Constraints...

I did unsub and download from Nexus to no avail, also cleaned Steam Cache....

the strange thing is, all DPurdy mods i have (Tojo and FDR) also give errors like those bellow:

[2203058.903] [Localization] ERROR: UNIQUE constraint failed: LocalizedText.Language, LocalizedText.Tag
[2203058.903] [Localization]: While executing - 'insert into LocalizedText('Tag', 'Language', 'Text') values (?, ?, ?);'
[2203058.903] [Localization]: In XMLSerializer while inserting row into table insert into LocalizedText('Tag', 'Language', 'Text') with values (LOC_DIPLO_DENOUNCE_REASON_FROM_AI_LEADER_ANY_REASON_DP_NEW_WORLD_ORDER_REASON_TRADE_PENALTY, en_US, (You are trading with them.), ).
[2203058.903] [Localization]: In XMLSerializer while updating table LocalizedText from file DPFDR_GameText.xml.
[2203058.903] [Localization] ERROR: UNIQUE constraint failed: LocalizedText.Language, LocalizedText.Tag
[2203061.398] [Gameplay] ERROR: UNIQUE constraint failed: Modifiers.ModifierId
[2203061.398] [Gameplay]: While executing - 'insert into Modifiers('ModifierId', 'ModifierType') values (?, ?);'
[2203061.398] [Gameplay]: In XMLSerializer while inserting row into table insert into Modifiers('ModifierId', 'ModifierType') with values (TRAIT_TOJO_MITSUBISHI_FREE_ZERO_UNIT, MODIFIER_PLAYER_ADD_DIPLOMATIC_MOVEMENT_MODIFIER, ).
[2203061.399] [Gameplay]: In XMLSerializer while updating table Modifiers from file DPTojo_LeaderAbility.xml.
[2203061.399] [Gameplay] ERROR: UNIQUE constraint failed: Modifiers.ModifierId
[2203061.409] [Gameplay] ERROR: UNIQUE constraint failed: Modifiers.ModifierId
[2203061.409] [Gameplay]: While executing - 'insert into Modifiers('ModifierId', 'ModifierType', 'SubjectRequirementSetId') values (?, ?, ?);'
[2203061.409] [Gameplay]: In XMLSerializer while inserting row into table insert into Modifiers('ModifierId', 'ModifierType', 'SubjectRequirementSetId') with values (DOGFIGHTING_BONUS_VS_FIGHTERS, MODIFIER_UNIT_ADJUST_COMBAT_STRENGTH, DOGFIGHTING_REQUIREMENTS, ).
[2203061.409] [Gameplay]: In XMLSerializer while updating table Modifiers from file DPTojo_ZeroUnitPromoClass.xml.

This is fascinating, @Spartak. I think DPurdy writes .sql files for most of his in-game objects (units, districts, etc.). The errors from the fossils should be coming be coming from .sql I wrote as well. Most of my work is in .xml but I had to make the fossils in .sql so that future mods could incorporate their own unique fossils. I don't think I have a solution other than verifying files or reinstalling. Either of these options may not even work.

When you have the time, would it be possible to create a fork of the mod without fossils? Because now all argentina mods are broken (at least for me), thank you anyway!

Hey, uh, question, what's up with the "ARGENTINA ADOLFO HILTER | LEADER" in the code?

Shhhh, @Riscic. Ignore any and all easter eggs.

wtf dude i'm from argentina lol