On stage, with company Long, in Employee flow, in Pre-board and onboard tour, on Every page with signature control, server error observed on Save and Continue button. PFA screen shots and error log

Exception : Object reference not set to an instance of an object.
App Error Log : -
Employee ID : 813
Action Name : GetEmployeeFormBuilderInfo
Model : System.Web.Mvc.HandleErrorInfo
Controller : Customization
Web Error Log : at WORKTERRA.Shared.Areas.Customization.Models.EmployeeFormBuilderModel.UpdateFormBuilderAttribute
(EmployeeData objEmployeeData, Int32 PageID, String PageTitle)
at WORKTERRA.Shared.Areas.Customization.Models.EmployeeFormBuilderModel.SaveAdditionalForm(EmployeeProfileModel
objEmployeeFormBuilder, EmployeeData objEmployeeData)
at WORKTERRA.Shared.Areas.Customization.Controllers.CustomizationController.GetEmployeeFormBuilderInfo
(EmployeeProfileModel objEmployeeFormBuilder)
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor
actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c_DisplayClass13.b_10()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext
preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext
preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1
filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)