Windows 8 USB Sorunu

ERROR REPORT ( 01/04/2014 16:12:55 ) Please submit this error report to developer.
Operating System version  :Microsoft Windows NT 6.2.9200.0
.NET Framework version    :4.0.30319.34003
Error Message            :
Could not load file or assembly 'PGK.Extensions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f93e897f802ddcb7' or one of its dependencies. Sistem belirtilen dosyayı bulamıyor.
StackTrace               :
  at A.V.D()
  at A.V.D(ImageItemBase , ProcessLog )
  at A.KB.D()
  at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
  at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Threading.ThreadHelper.ThreadStart()