System.Data.SqlClient.SqlException was unhandled
  Class=16
  ErrorCode=-2146232060
  LineNumber=1
  Message="Could not locate entry in sysdatabases for database 'Nezam_DB'. No entry found with that name. Make sure that the name is entered correctly. BACKUP DATABASE is terminating abnormally."
  Number=911
  Procedure=""
  Server="\\.\pipe\7B3DA5D6-4DEB-48\tsql\query"
  Source=".Net SqlClient Data Provider"
  State=11
  StackTrace:
       at System.Data.SqlClient.SqlConnection.OnError(SqlExc  eption exception, Boolean breakConnection)    at System.Data.SqlClient.SqlInternalConnection.OnErro  r(SqlException exception, Boolean breakConnection)    at System.Data.SqlClient.TdsParser.ThrowExceptionAndW  arning(TdsParserStateObject stateObj)    at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)    at System.Data.SqlClient.SqlCommand.RunExecuteNonQuer  yTds(String methodName, Boolean async)    at System.Data.SqlClient.SqlCommand.InternalExecuteNo  nQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()    at Nezam_Mohandesi_Sari.FRM_BK.ButtonX2_Click(Object sender, EventArgs e) in C:\Users\h03in\Desktop\komail-2\h03in\Nezam_Mohandesi_Sari\Nezam_Mohandesi_Sari\  Forms\FRM_BK.vb:line 78    at System.Windows.Forms.Control.OnClick(EventArgs e)    at DevComponents.DotNetBar.ButtonX.OnClick(EventArgs e)    at DevComponents.DotNetBar.ButtonX.OnMouseUp(MouseEve  ntArgs e)    at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)    at System.Windows.Forms.Control.WndProc(Message& m)    at DevComponents.DotNetBar.PopupItemControl.WndProc(M  essage& m)    at System.Windows.Forms.Control.ControlNativeWindow.O  nMessage(Message& m)    at System.Windows.Forms.Control.ControlNativeWindow.W  ndProc(Message& m)    at System.Windows.Forms.NativeWindow.DebuggableCallba  ck(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)    at System.Windows.Forms.UnsafeNativeMethods.DispatchM  essageW(MSG& msg)    at System.Windows.Forms.Application.ComponentManager.  System.Windows.Forms.UnsafeNativeMethods.IMsoCompo  nentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)    at System.Windows.Forms.Application.ThreadContext.Run  MessageLoopInner(Int32 reason, ApplicationContext context)    at System.Windows.Forms.Application.ThreadContext.Run  MessageLoop(Int32 reason, ApplicationContext context)    at System.Windows.Forms.Application.Run(ApplicationCo  ntext context)    at Microsoft.VisualBasic.ApplicationServices.WindowsF  ormsApplicationBase.OnRun()    at Microsoft.VisualBasic.ApplicationServices.WindowsF  ormsApplicationBase.DoApplicationModel()    at Microsoft.VisualBasic.ApplicationServices.WindowsF  ormsApplicationBase.Run(String[] commandLine)    at Nezam_Mohandesi_Sari.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81    at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)    at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)    at Microsoft.VisualStudio.HostingProcess.HostProc.Run  UsersAssembly()    at System.Threading.ThreadHelper.ThreadStart_Context(  Object state)    at System.Threading.ExecutionContext.Run(ExecutionCon  text executionContext, ContextCallback callback, Object state)    at System.Threading.ThreadHelper.ThreadStart()
  InnerException: