The game launches well and is smooth until I click the start button after setting up a game, it never freezes but just automatically jumps to this error message. I'm having trouble uploading the diagnostics but here are the error and exception lines from it.

ERROR

11:17:00:371GameplaySTACKGrowthFormula parsing raised an exception: System.ArgumentNullException: Argument cannot be null. Parameter name: expression at Amplitude.Unity.Framework.Interpreter.Tokenize (System.String expression) [0x00000] in :0 at Amplitude.Unity.Framework.Interpreter.TokenizeToReversePolishNotation (System.String expression) [0x00000] in :0 at DepartmentOfTheInterior.ComputeGrowthLimit (Amplitude.Unity.Simulation.SimulationObject contextSimulationObject, Single population, System.String customFormula) [0x00000] in :0

 at ComputeGrowthLimit in :line 0 at GetGrowthLimit in :line 0 at GetGrowthLimits in :line 0 at UpdateMaximumPopulationGrowthStock in :line 0 at UpdateLevel in :line 0 at UpdateLevel in :line 0 at LoadRanks in :line 0 at Load in :line 0 at Load in :line 0 at MoveNext in :line 0 at Run in :line 0 at MoveNext in :line 0 at InvokeMoveNext in :line 0

ERROR

11:17:00:372GameplaySTACKAn exception was raised when executing GameServerState_LaunchGame.

 at GameService_CreateGameComplete in :line 0 at OnCreateGameComplete in :line 0 at CreateGameAsync_CoroutineExceptionHandler in :line 0 at Run in :line 0 at MoveNext in :line 0 at InvokeMoveNext in :line 0

EXCEPTION

11:17:00:373GameplaySTACKArgument cannot be null. Parameter name: expression

 at Tokenize in :line 0 at TokenizeToReversePolishNotation in :line 0 at ComputeAssimilationThreshold in :line 0 at MoveNext in :line 0 at Run in :line 0