We are getting the error once we submit the sitecore 9.1 form. This is happening when we enable the the check box "Is tracking Enable" in sitecore core form.
and this error is not with stand aloneStandalone role, only with CD and CM server.
The error is
[ArgumentException: alias should not be null or an empty string.
Parameter name: alias]
Sitecore.Framework.Conditions.RequiresValidator1.ThrowExceptionCore(String condition, String additionalMessage, ConstraintViolationType type) +100 Sitecore.Framework.Conditions.Throw.ValueShouldNotBeNullOrAnEmptyString(ConditionValidator
1 validator, String conditionDescription) +121
Sitecore.Framework.Conditions.ValidatorExtensions.IsNotNullOrEmpty(ConditionValidator1 validator) +41 Sitecore.Marketing.Core.Extensions.ConditionValidatorExtensions.IsValidAlias(ConditionValidator
1 validator) +139
Sitecore.Marketing.Definitions.DefinitionManagerBase2.GetByAlias(String alias, CultureInfo cultureInfo, Boolean includeInactiveVersion) +87 Sitecore.Analytics.Data.DefinitionCollection
1.get_Item(String name) +156
Sitecore.Analytics.Tracking.PageContext.Register(PageEventData pageData) +437
Sitecore.ExperienceForms.Analytics.Tracking.FormEventsTracker.RegisterFormBegin(FormTrackingEventData pageEventData) +374
Sitecore.ExperienceForms.Analytics.Tracking.FormEventsTracker.RegisterEvent(TEventData trackingEventData) +100
Sitecore.ExperienceForms.Mvc.FormRenderingContext.RegisterFormEvent(FormEventData formEventData) +117
Sitecore.ExperienceForms.Mvc.Controllers.FormBuilderController.Index(FormDataModel data) +271
lambda_method(Closure , ControllerBase , Object[] ) +139
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary2 parameters) +35 System.Web.Mvc.Async.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39 System.Web.Mvc.Async.WrappedAsyncResult
2.CallEndDelegate(IAsyncResult asyncResult) +70
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0() +72
System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +387
System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +387
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__3() +50
System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult) +188
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +26
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +68 System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52 System.Web.Mvc.Async.WrappedAsyncVoid
1.CallEndDelegate(IAsyncResult asyncResult) +39
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +40
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +68
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +648
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +213
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +131
[ArgumentException: alias should not be null or an empty string.
Parameter name: alias]
Sitecore.Framework.Conditions.RequiresValidator1.ThrowExceptionCore(String condition, String additionalMessage, ConstraintViolationType type) +100 Sitecore.Framework.Conditions.Throw.ValueShouldNotBeNullOrAnEmptyString(ConditionValidator
1 validator, String conditionDescription) +121
Sitecore.Framework.Conditions.ValidatorExtensions.IsNotNullOrEmpty(ConditionValidator1 validator) +41 Sitecore.Marketing.Core.Extensions.ConditionValidatorExtensions.IsValidAlias(ConditionValidator
1 validator) +139
Sitecore.Marketing.Definitions.DefinitionManagerBase2.GetByAlias(String alias, CultureInfo cultureInfo, Boolean includeInactiveVersion) +87 Sitecore.Analytics.Data.DefinitionCollection
1.get_Item(String name) +156
Sitecore.Analytics.Tracking.PageContext.Register(PageEventData pageData) +437
Sitecore.ExperienceForms.Analytics.Tracking.FormEventsTracker.RegisterFormBegin(FormTrackingEventData pageEventData) +374
Sitecore.ExperienceForms.Analytics.Tracking.FormEventsTracker.RegisterEvent(TEventData trackingEventData) +100
Sitecore.ExperienceForms.Mvc.FormRenderingContext.RegisterFormEvent(FormEventData formEventData) +117
Sitecore.ExperienceForms.Mvc.Controllers.FormBuilderController.Index(FormDataModel data) +271
lambda_method(Closure , ControllerBase , Object[] ) +139
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary2 parameters) +35 System.Web.Mvc.Async.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39 System.Web.Mvc.Async.WrappedAsyncResult
2.CallEndDelegate(IAsyncResult asyncResult) +70
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0() +72
System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +387
System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +387
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__3() +50
System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult) +188
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +26
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +68 System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52 System.Web.Mvc.Async.WrappedAsyncVoid
1.CallEndDelegate(IAsyncResult asyncResult) +39
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +40
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +68
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +648
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +213
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +131