Fix portAudio error msg

Vocaluxe/Lib/Sound/Playback/PortAudio/CPortAudioStream.cs

@@ -240,15 +240,13 @@ namespace Vocaluxe.Lib.Sound.Playback.PortAudio
             if (!_FileOpened || _Terminated || !IsPaused)
                 return;
             IsPaused = false;
-            _PaHandle.CheckError("StartStream", PortAudioSharp.PortAudio.Pa_StartStream(_Stream));
         }
 
         public override void Stop()
         {
             if (!_FileOpened || _Terminated)
                 return;
-            _Paused = true;
-            _PaHandle.CheckError("StopStream (playback)", PortAudioSharp.PortAudio.Pa_StopStream(_Stream));
+            IsPaused = true;
             Position = 0f;
         }