KERNELBASE.dll exception

[huangbq4gh]

I'm running the NRobotServer on Win10. The server was being hit 10 times per minute. It was working great for more than 2 days. Then the NRobotServer.exe stopped. In Event Viewer, I see these 2 errors and 1 Information. Any thought will be appreciated. Thanks!

Application Error
Faulting application name: NRobot.Server.exe, version: 1.0.0.30403, time stamp: 0x5a568b56
Faulting module name: KERNELBASE.dll, version: 6.3.9600.18666, time stamp: 0x58f32841
Exception code: 0xe0434352
Fault offset: 0x00015608
Faulting process id: 0x3da4
Faulting application start time: 0x01d399576b3f70f1
Faulting application path: C:\SVN\FALCOR\QE\Automation\RobotFramework\NRobotServer\build\NRobot.Server.exe
Faulting module path: C:\Windows\SYSTEM32\KERNELBASE.dll
Report Id: 9912290a-069b-11e8-80ea-005056a67a83
Faulting package full name:
Faulting package-relative application ID:

.NET Runtime
Application: NRobot.Server.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Net.HttpListenerException
at System.Net.HttpResponseStream.Dispose(Boolean)
at System.IO.Stream.Close()
at System.Net.HttpListenerResponse.Dispose(Boolean)
at System.Net.HttpListenerResponse.System.IDisposable.Dispose()
at System.Net.HttpListenerResponse.Close()
at WebTestFramework.WebProxy.ListenerCallback(System.IAsyncResult)
at System.Net.LazyAsyncResult.Complete(IntPtr)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(System.Object, IntPtr)
at System.Net.ListenerAsyncResult.IOCompleted(System.Net.ListenerAsyncResult, UInt32, UInt32)
at System.Net.ListenerAsyncResult.WaitCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)

Windows Error Reporting
Fault bucket , type 0
Event Name: CLR20r3
Response: Not available
Cab Id: 0

Problem signature:
P1: NRobot.Server.exe
P2: 1.0.0.30403
P3: 5a568b56
P4: System
P5: 4.7.2114.0
P6: 59a63a25
P7: 115a
P8: 234
P9: System.Net.HttpListenerException
P10:

Attached files:

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_NRobot.Server.ex_c9f077d1d7dadde92ce7e3f37511466036e5ffb8_2ae0a23f_0596092c

Analysis symbol:
Rechecking for solution: 0
Report Id: 9912290a-069b-11e8-80ea-005056a67a83
Report Status: 2048
Hashed bucket: