Error: Multiple schemas matched the message type Error

Hi,

I get an error:
There was a failure executing the response(receive) pipeline: "Microsoft.BizTalk.DefaultPipelines.XMLReceive, Microsoft.BizTalk.DefaultPipelines, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Source: "XML disassembler" Send Port: "SendPortDBPOC" URI: "mssql://MyDatabase" Reason: Cannot locate document specification because multiple schemas matched the message type "http://schemas.microsoft.com/Sql/2008/05/Procedures/dbo#sp_GetEmailResponse". 

I cannot see the above [msgtype] in [bt_DocumentSpec].

I know I could do this with Receive Pipeline with 'Allow Unrecognized Documents' to truebut I want to remove all the documents with this Message Type from BizTalk DB and then deploy only one as I don't know from where I got many multiple schemas.

Thanks.

Kunal G