When you fill out the DNN registration form you get that generic YAF error in a little box in the middle.
Here's the error details from the DNN event viewer:
ModuleControlSource:DesktopModules/YetAnotherForumDotNet/YafDnnModule.ascx
AssemblyVersion:7.2.1
AbsoluteURL:/Default.aspx
AbsoluteURLReferrer:http://fruitsteading.com/Register?returnurl=http%253a%252f%252ffruitsteading.com%252f&popUp=true
UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0
DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke
ExceptionGUID:c1cd20cd-4a93-499f-80c5-7d25c5d69b33
InnerException:serviceLocator cannot be null Parameter name: serviceLocator
Method:YAF.Types.Interfaces.IServiceLocatorExtensions.Get
Message:
DotNetNuke.Services.Exceptions.ModuleLoadException: serviceLocator cannot be null
Parameter name: serviceLocator ---> System.ArgumentNullException: serviceLocator cannot be null
Parameter name: serviceLocator
at YAF.Types.Interfaces.IServiceLocatorExtensions.Get[TService](IServiceLocator serviceLocator)
at YAF.DotNetNuke.YafDnnModule.CreateOrUpdateUser()
at YAF.DotNetNuke.YafDnnModule.DotNetNukeModule_Load(Object sender, EventArgs e)
--- End of inner exception stack trace ---