@Bazza1017 You have a mod conflict.
These errors should not happen
[1799034.796] [Gameplay] ERROR: UNIQUE constraint failed: CivicPrereqs.Civic, CivicPrereqs.PrereqCivic
[1799034.796] [Gameplay]: While executing - 'insert into CivicPrereqs('Civic', 'PrereqCivic') values (?, ?);'
[1799034.796] [Gameplay]: In XMLSerializer while inserting row into table insert into CivicPrereqs('Civic', 'PrereqCivic') with values (CIVIC_MERCANTILISM, CIVIC_EXPLORATION, ).
[1799034.796] [Gameplay]: In XMLSerializer while updating table CivicPrereqs from file RTT_Civics.xml.
[1799034.796] [Gameplay] ERROR: UNIQUE constraint failed: CivicPrereqs.Civic, CivicPrereqs.PrereqCivic
[1799034.798] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.798] [Gameplay]: While executing - 'insert into TechnologyPrereqs('Technology', 'PrereqTech') values (?, ?);'
[1799034.798] [Gameplay]: In XMLSerializer while inserting row into table insert into TechnologyPrereqs('Technology', 'PrereqTech') with values (TECH_MILITARY_ENGINEERING, TECH_MACHINERY, ).
[1799034.798] [Gameplay]: In XMLSerializer while updating table TechnologyPrereqs from file RTT_Technologies.xml.
[1799034.798] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.821] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.821] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
There is another mod that changes Tech and Civic trees and causes RTT to not load properly. This in turn may crash your game.
These errors should not happen
[1799034.796] [Gameplay] ERROR: UNIQUE constraint failed: CivicPrereqs.Civic, CivicPrereqs.PrereqCivic
[1799034.796] [Gameplay]: While executing - 'insert into CivicPrereqs('Civic', 'PrereqCivic') values (?, ?);'
[1799034.796] [Gameplay]: In XMLSerializer while inserting row into table insert into CivicPrereqs('Civic', 'PrereqCivic') with values (CIVIC_MERCANTILISM, CIVIC_EXPLORATION, ).
[1799034.796] [Gameplay]: In XMLSerializer while updating table CivicPrereqs from file RTT_Civics.xml.
[1799034.796] [Gameplay] ERROR: UNIQUE constraint failed: CivicPrereqs.Civic, CivicPrereqs.PrereqCivic
[1799034.798] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.798] [Gameplay]: While executing - 'insert into TechnologyPrereqs('Technology', 'PrereqTech') values (?, ?);'
[1799034.798] [Gameplay]: In XMLSerializer while inserting row into table insert into TechnologyPrereqs('Technology', 'PrereqTech') with values (TECH_MILITARY_ENGINEERING, TECH_MACHINERY, ).
[1799034.798] [Gameplay]: In XMLSerializer while updating table TechnologyPrereqs from file RTT_Technologies.xml.
[1799034.798] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.821] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
[1799034.821] [Gameplay] ERROR: UNIQUE constraint failed: TechnologyPrereqs.Technology, TechnologyPrereqs.PrereqTech
There is another mod that changes Tech and Civic trees and causes RTT to not load properly. This in turn may crash your game.