Validator error when creating new Contact entity

When creating new Contact (either by code or the UI) I get this error without much direction on how to fix it.

I'm relatively new to commerce, is there a better way to debug the commerce solution? 

at Mediachase.BusinessFoundation.Data.BaseFieldValidator.GetValue()
at Mediachase.BusinessFoundation.Data.EnumFieldValidator.EvaluateIsValid()
at Mediachase.BusinessFoundation.Data.BaseFieldValidator.Validate()
at Mediachase.BusinessFoundation.Data.Meta.MetaObject.Validate()
at Mediachase.BusinessFoundation.Data.Meta.MetaObject.OnSaving()
at Mediachase.BusinessFoundation.Data.Meta.MetaObject.Save(Boolean forceSave)
at Mediachase.BusinessFoundation.Data.Meta.MetaObject.Save()
at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Create(BusinessContext context)
at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Execute(BusinessContext context)
at Mediachase.BusinessFoundation.Data.Business.BaseRequestHandler.Mediachase.BusinessFoundation.Data.Business.IRequestHandler.Execute(BusinessContext context)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipeline(IRequestHandler handler)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipelineInTransaction(IRequestHandler handler)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Execute(Request request)
at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Create(EntityObject target)
at Mediachase.Commerce.Customers.CustomerContact.SaveChanges()
at Valtech.Christie.AccountManagement.Implementation.Manager.Contact.Adaptor.ContactAdaptor.SaveChanges() in C:\Projects\CorporateWebsiteEpiserver\Valtech.Christie.AccountManagement.Implementation\Manager\Contact\Adaptor\ContactAdaptor.cs:line 402