Hi TitanGod_,
I've been chasing down what is causing a critical error and I have come to the belief that it is this particular mod as I systematically activated and deactivated mods until the error returned.
Here is the Critical Error from the log:
[SceneFlow] [CRITICAL] System update error during GameSimulation->PropertyRenterSystem: System.MissingFieldException: Field not found: bool Game.Simulation.PropertyRenterSystem.debugFastLeveling Due to: Could not find field in class
at (wrapper dynamic-method) Game.Simulation.PropertyRenterSystem.Game.Simulation.PropertyRenterSystem.OnUpdate_Patch1(Game.Simulation.PropertyRenterSystem)
at Unity.Entities.SystemBase.Update () [0x0004e] in <adcf32f8c4f54ffe80a1d47a3227e68a>:0
at Game.UpdateSystem.Update (Game.SystemUpdatePhase phase, System.UInt32 updateIndex, System.Int32 iterationIndex) [0x0007a] in <90d6bddbab32420b8eff223b00d71586>:0
0x00007fff2a04c20d (UnityPlayer) UnityMain
0x00007fff2a04bf88 (UnityPlayer) UnityMain
0x00007fff2a0331a9 (UnityPlayer) UnityMain
0x00007fff2a6d11c1 (UnityPlayer) UnityMain
0x00007fff296ba8d5 (UnityPlayer)
0x000002049020f0c3 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
0x000002049020efdb (Mono JIT Code) UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
0x000002048ecc80da (Mono JIT Code) Colossal.Logging.CustomLogHandler

ostProcessFormat (UnityEngine.LogType,UnityEngine.Object,string,Colossal.Logging.ILog,System.Exception)
0x000002048ecc78f3 (Mono JIT Code) Colossal.Logging.CustomLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
0x000002048ecc75c1 (Mono JIT Code) UnityEngine.Logger:LogFormat (UnityEngine.LogType,string,object[])
0x000002048ecc6f7d (Mono JIT Code) Colossal.Logging.UnityLogger:Log (Colossal.Logging.Level,string,System.Exception)
0x00000205bbddfd2b (Mono JIT Code) Colossal.Logging.UnityLogger:CriticalFormat (System.Exception,string,object,object)
0x00000204c8cea265 (Mono JIT Code) Game.UpdateSystem:Update (Game.SystemUpdatePhase,uint,int)
0x000002050efdefcb (Mono JIT Code) Game.Simulation.SimulationSystem:OnUpdate ()
0x000002050efdd07b (Mono JIT Code) Unity.Entities.SystemBase:Update ()
0x000002050efd7b4f (Mono JIT Code) Game.UpdateSystem:Update (Game.SystemUpdatePhase)
0x00000204c0b1d103 (Mono JIT Code) Game.SceneFlow.GameManager:LateUpdateWorld ()
0x00000204c0b1c0fb (Mono JIT Code) Game.SceneFlow.GameManager:LateUpdate ()
0x000002044579efd8 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007fff2d394c1e (mono-2.0-bdwgc) mono_jit_set_domain
0x00007fff2d2cd254 (mono-2.0-bdwgc) mono_object_get_virtual_method
0x00007fff2d2cd3cc (mono-2.0-bdwgc) mono_runtime_invoke
0x00007fff29dbaaa6 (UnityPlayer)
0x00007fff29dbabd1 (UnityPlayer)
0x00007fff29a8e450 (UnityPlayer)
0x00007fff29bf9c48 (UnityPlayer)
0x00007fff29bf9e34 (UnityPlayer)
0x00007fff29bfa352 (UnityPlayer)
0x00007fff29e4cd8b (UnityPlayer)
0x00007fff29e4f78b (UnityPlayer)
0x00007fff29e52b3b (UnityPlayer)
0x00007fff29e52ddb (UnityPlayer) UnityMain
0x00007ff76c3511f2 (Cities2)
0x00007fffefe2257d (KERNEL32) BaseThreadInitThunk
0x00007ffff19aaf28 (ntdll) RtlUserThreadStart