[Tails-dev] error

Dear Sir
Yours new wersion of Tails 1.2.2 probably has an error.I tried create iso on usb when this information show me.
 
ERROR REPORT ( 12/31/2014 16:57:06 )
Please submit this error report to developer.
Operating System version  :Microsoft Windows NT 6.2.9200.0
.NET Framework version    :4.0.30319.18449
Error Message            :
Could not load file or assembly 'PGK.Extensions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f93e897f802ddcb7' or one of its dependencies. Nie można odnaleźć określonego pliku.
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()
 
I am sorry for my basic english but I suppose this information is important.
  
 
Yours faithfully