Getting the following error when adding the contact page.

Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 


[NullReferenceException: Object reference not set to an instance of an object.]
   umbraco.cms.businesslogic.property.Property.MakeNew(PropertyType pt, Content c, Guid versionId) +701
   umbraco.cms.businesslogic.Content.createNewVersion(DateTime versionDate) +977
   umbraco.cms.businesslogic.Content.CreateContent(ContentType ct) +476
   umbraco.cms.businesslogic.web.Document.MakeNew(String Name, DocumentType dct, User u, Int32 ParentId) +683
   umbraco.contentTasks.Save() +75
   umbraco.presentation.create.dialogHandler_temp.Create(String NodeType, Int32 TypeId, Int32 NodeId, String Text) +681
   umbraco.cms.presentation.create.controls.content.doCreation() +222
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +154
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3803

I also have lots of versions of the page showing in in my sort popop...