Configurator On Load Error

Does anyone know why on launch of the configurator an error message as below would occur? Able to create the part as normal after continuing with the error message

Application Error

Exception caught in: Erp.Lib.Configurator

Error Detail

Message: Input string was not in a correct format.
Program: Erp.Lib.Configurator.dll
Method: TriggerInputEvent

Client Stack Trace

at Erp.Lib.Configurator.Runtime.ConfigurationController`1.TriggerInputEvent(InputChangedArgs args)
at Erp.UI.Cfg.TEST06fae84c620e411c95a9202dae9793fa.Controllers._USAUSAController._USAUSAPage1_ColumnChanged(Object sender, DataColumnChangeEventArgs e) in c:\Users\ypatel\AppData\Local\Temp\ConfigDump\Client_USAUSAController.cs:line 708

I was running into a similar error upon transition in a configurator, and unapproving and reapproving the configurator alluded to in the .cs file in the configdump folder fixed the issue.