First off great product.

I am getting an error (YSOD) when trying to make a new Campaign and Campaign Item in the uCommerce back office. 

Error Message:

deleted object would be re-saved by cascade (remove deleted object from associations)[UCommerce.EntitiesV2.PriceGroupRole#13]

Exception Details

NHibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations)[UCommerce.EntitiesV2.PriceGroupRole#13]

Stack trace: 

[ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations)[UCommerce.EntitiesV2.PriceGroupRole#13]]
   NHibernate.Impl.SessionImpl.ForceFlush(EntityEntry entityEntry) +435
   NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.EntityIsTransient(SaveOrUpdateEvent event) +66
   NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent event) +89
   NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent event) +203
   NHibernate.Impl.SessionImpl.FireSaveOrUpdate(SaveOrUpdateEvent event) +315
   NHibernate.Impl.SessionImpl.SaveOrUpdate(String entityName, Object obj) +309
   NHibernate.Engine.SaveUpdateCascadingAction.Cascade(IEventSource session, Object child, String entityName, Object anything, Boolean isCascadeDeleteEnabled) +66
   NHibernate.Engine.Cascade.CascadeToOne(Object parent, Object child, IType type, CascadeStyle style, Object anything, Boolean isCascadeDeleteEnabled) +148
   NHibernate.Engine.Cascade.CascadeAssociation(Object parent, Object child, IType type, CascadeStyle style, Object anything, Boolean isCascadeDeleteEnabled) +61
   NHibernate.Engine.Cascade.CascadeProperty(Object parent, Object child, IType type, CascadeStyle style, Object anything, Boolean isCascadeDeleteEnabled) +81
   NHibernate.Engine.Cascade.CascadeCollectionElements(Object parent, Object child, CollectionType collectionType, CascadeStyle style, IType elemType, Object anything, Boolean isCascadeDeleteEnabled) +379
   NHibernate.Engine.Cascade.CascadeCollection(Object parent, Object child, CascadeStyle style, Object anything, CollectionType type) +143
   NHibernate.Engine.Cascade.CascadeAssociation(Object parent, Object child, IType type, CascadeStyle style, Object anything, Boolean isCascadeDeleteEnabled) +124
   NHibernate.Engine.Cascade.CascadeProperty(Object parent, Object child, IType type, CascadeStyle style, Object anything, Boolean isCascadeDeleteEnabled) +81
   NHibernate.Engine.Cascade.CascadeOn(IEntityPersister persister, Object parent, Object anything) +369
   NHibernate.Event.Default.AbstractFlushingEventListener.CascadeOnFlush(IEventSource session, IEntityPersister persister, Object key, Object anything) +107
   NHibernate.Event.Default.AbstractFlushingEventListener.PrepareEntityFlushes(IEventSource session) +238
   NHibernate.Event.Default.AbstractFlushingEventListener.FlushEverythingToExecutions(FlushEvent event) +141
   NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event) +80
   NHibernate.Impl.SessionImpl.Flush() +345
   UCommerce.EntitiesV2.Repository`1.Delete(T entity) +23
   UCommerce.EntitiesV2.Role.Delete() +20
   UCommerce.Security.RoleService.EnsurePriceGroupRoles(ProductCatalogGroupRole productCatalogGroupRole, IList`1 existingRoles) +341
   UCommerce.Security.RoleService.EnsureRolesAreUpToDate() +405
   UCommerce.Security.RoleService.GetAllRoles() +10
   UCommerce.Security.Default.SecurityExtensions.AssignPermissionFor(ISecurityService securityService, TEntity entity) +101
   UCommerce.Web.UI.Umbraco.UCommerce.Marketing.Dialogs.CreateCampaign.CreateButton_Clicked(Object sender, EventArgs e) +300
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9553594
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +103
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724