Could not load file or assembly 'Telerik.Sitefinity, Version=5.4.4020.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Server Error in '/TBF' Application.
HTTP Error 400 - Bad Request.
Version Information: Telerik Web Server 6.0.4100.0
There should be an error log file. Can you please attach it to this thread?