Ez-B Disgard In Coming Buffer

Here's the debug. was working fine until then.

EZB 0: 
EZB 1: 
EZB 2: 
EZB 3: 
EZB 4: 
TCP Server stopped
TCP Server stopped
TCP Server stopped
TCP Server stopped
TCP Server stopped
Camera Disabled
Camera Disabled
Error Initializing Camera: System.ArgumentException: Value does not fall within the expected range.
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at  .()
   at  .(Control )
   at EZ_B.Camera.StartCamera(String videoCaptureDeviceName, Control processedPreviewControl, Control realtimePreviewControl, Int32 captureWidth, Int32 captureHeight). Resolution: 160x120
TCP Server stopped
TCP Server stopped
TCP Server stopped
TCP Server stopped
TCP Server stopped
Speech Recognition Culture: en-US
Loaded speech recognition successfully
Attempting connection on COM15
Connected to COM15 at 9600
EZ-B reports EZ-B Firmware V16
Connected
Comm Err: The operation has timed out.
BbytesToExpect: 1

Received: 
Disconnected
Disconnected
Comm Err: Not Connected
BbytesToExpect: 1

Received: 
Disconnected
Disconnected
Attempting connection on COM15
Connected to COM15 at 9600
EZ-B reports EZ-B Firmware V16
Connected
Disgard incoming buffer (This should never happen)
Comm Err: The operation has timed out.
BbytesToExpect: 1

Received: 
Disconnected
Comm Err: Not Connected
Disconnected
BbytesToExpect: 1

Received: 
Disconnected
Disconnected

What could be wrong?