CLR ERROR after install SP2 CU5

Recently installed service pack CU5 service pack 2 for MSSQL Server 2008 R2 after the service pack installations CU5 the store procedure created by one began to fail CLR communication because it has the connection using alias that sends error is described down
I hope you can help me with this problem thanks

Msg 6522, Level 16, State 1, Procedure Engine_CR, Line 0

A .NET Framework error occurred during execution of user-defined routine or aggregate "Engine_CR": 
System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
System.Net.Sockets.SocketException: 
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
System.IO.IOException: 
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
System.Net.WebException: 
   at System.Net.HttpWebRequest.GetResponse()
   at EngineCRProc.LlamaCR(String hostname, String ht)
   at EngineCRProc.ProcessCR(String hostname, String ht, String& text)