Video Call remote video error Log

2018-09-09 10:04:42.952 myApp[6858:3352179] Failed to bind EAGLDrawable: <CAEAGLLayer: 0x1c04208e0> to GL_RENDERBUFFER 1
2018-09-09 10:04:42.952 myApp[6858:3352179] Failed to make complete framebuffer object 8cd6
2018-09-09 10:04:44.201 rtc::[QBRTCAudioSession] Switched from Speaker to (null) port. Reason: The set of input and output ports has not changed, but their configuration port’s selected data source might has changed.
2018-09-09 10:04:44.202 rtc::[QBRTCAudioSession] Current audio device was updated to Receiver
2018-09-09 10:04:44.202 rtc::[QBRTCAudioSession] Did begin interruption.
2018-09-09 10:04:44.222 rtc::[CAMC] Capture session interrupted: VideoDeviceNotAvailableInBackground
2018-09-09 10:04:44.222 rtc::[CAMC] Capture session stopped.
2018-09-09 10:04:44.238 rtc::[QBRTCAudioSession] Switched from Speaker to (null) port. Reason: The category of the session object changed or session was just activated.
2018-09-09 10:04:45.015 rtc::dealloc - [CAMC]<QBRTCCameraCapture 0x1c00da940>
2018-09-09 10:04:45.038 rtc::[RTCClient] QBChat is connected
2018-09-09 10:04:45.038 rtc::[RTCClient] Added <myApp.CallViewControllerNew: 0x145d89e30> to list of delegates 
2018-09-09 10:04:45.038 rtc::[RTCClient] List of Delegates (
    "<myApp.AppDelegate: 0x1c0151250>",
    "<myApp.CallViewControllerNew: 0x145d89e30>"
)
2018-09-09 10:04:45.038 rtc::[CAMC] Initializing QBRTCCameraCapture with video format: <QBRTCVideoFormat:0x1c064c2d0, dimensions: 640x480, frame rate: 21, pixel format: 420f>
2018-09-09 10:04:45.041 rtc::[CAMC] Starting QBRTCCameraCapture capture session.
2018-09-09 10:04:45.041 rtc::[QBRTCAudioSession] Trying to initialize QBRTCAudioSession while it's already has been initialized. Deinitialize instance first.
2018-09-09 10:04:45.049 rtc::Updating device: <AVCaptureFigVideoDevice: 0x145d0ab70 [Front Camera][com.apple.avfoundation.avcapturedevice.built-in_video:1]> with video format: <AVCaptureDeviceFormat: 0x1c000d500 'vide'/'420f'  640x 480, { 2- 60 fps}, fov:54.400, max zoom:60.00 (upscales @2.00), ISO:34.0-2176.0, SS:0.000013-0.500000, supports HDR>
2018-09-09 10:04:45.067 rtc::[CAMC] Capture session interrupted: VideoDeviceNotAvailableInBackground
2018-09-09 10:04:45.067 rtc::[CAMC] Capture session stopped.
2018-09-09 10:04:45.067 rtc::[SESS]<AE9A7191-7C99-4D60-97B3-A2568FE39821, I:57578458, O:[57578420], T:V> Accept call
2018-09-09 10:04:45.067 rtc::[CAMC] QBRTCCameraCapture did set video track.
2018-09-09 10:04:45.262 rtc::[PCON]<57578458, R:Answer> Did change ice gethering state to COMPLETE
2018-09-09 10:04:45.555 rtc::[QBRTCAudioSession] Switched from (null) to Speaker port. Reason: The category of the session object changed or session was just activated.
2018-09-09 10:04:45.556 rtc::[QBRTCAudioSession] Did end interruption, should resume: YES
2018-09-09 10:04:45.601 rtc::[PCON]<57578458, R:Answer> Did change ice connection state to CONNECTED
2018-09-09 10:04:45.601 myApp[6858:3352179] **:-  Call connectedToUser :57578458
2018-09-09 10:04:45.763 rtc::[QBRTCAudioSession] Did end interruption, should resume: YES
2018-09-09 10:04:45.763 rtc::[CAMC] Restarting capture session on active.
2018-09-09 10:04:45.764 rtc::[CAMC] Capture session interrupted: VideoDeviceNotAvailableInBackground
2018-09-09 10:04:45.764 rtc::[CAMC] Capture session stopped.
2018-09-09 10:04:45.874 rtc::[QBRTCAudioSession] Switched from Speaker to Speaker port. Reason: The output route was overridden by the app.
2018-09-09 10:04:45.918 rtc::[QBRTCAudioSession] Switched from Speaker to Speaker port. Reason: The output route was overridden by the app.
2018-09-09 10:04:46.004 rtc::[CAMC] Capture session interruption ended.
2018-09-09 10:04:46.005 rtc::[CAMC] Capture session started.
2018-09-09 10:04:49.202 rtc::[Signaling Processor] - Did receive signal: iceCandidates from: 57578458
2018-09-09 10:04:49.202 rtc::[PCON]<57578458, R:Answer> Set remote ICE candidates, count: 5
2018-09-09 10:04:53.358 rtc::[SESS]<AE9A7191-7C99-4D60-97B3-A2568FE39821, I:57578458, O:[57578420], T:V> Hang Up call
2018-09-09 10:04:53.358 rtc::[SESS]<AE9A7191-7C99-4D60-97B3-A2568FE39821, I:57578458, O:[57578420], T:V> Begin hangup, userinfo: (null).
2018-09-09 10:04:53.358 rtc::[PCON]<57578458, R:Answer> Closing
2018-09-09 10:04:53.360 rtc::[PCON]<57578458, R:Answer> Did change ice connection state to CLOSED
2018-09-09 10:04:53.360 rtc::[PCON]<57578458, R:Answer> Signaling state CLOSED
2018-09-09 10:04:53.595 rtc::[QBRTCAudioSession] Switched from Speaker to Speaker port. Reason: The output route was overridden by the app.
2018-09-09 10:04:53.615 rtc::dealloc QBRTCAudioTrack
2018-09-09 10:04:53.616 rtc::dealloc QBRTCVideoTrack
2018-09-09 10:04:53.621 rtc::Deallocating local media stream.
2018-09-09 10:04:53.622 rtc::dealloc QBRTCLocalAudioTrack
2018-09-09 10:04:53.622 rtc::[TASK]<ID:43, l:Stats report> Invalidate.
2018-09-09 10:04:53.622 rtc::dealloc - <QBRTCRecorder: 0x143ea9c50>
2018-09-09 10:04:53.624 rtc::[TASK]<ID:0, l:Stats report> Dealloc.
2018-09-09 10:04:53.624 rtc::[CAMC] QBRTCCameraCapture did remove from video track.
2018-09-09 10:04:53.625 rtc::dealloc QBRTCLocalVideoTrack
2018-09-09 10:04:53.625 rtc::[VSND] Stop
2018-09-09 10:04:53.700 rtc::[RTCClient] Deinitializing SSL...
2018-09-09 10:04:54.135 rtc::[QBRTCAudioSession] Switched from Speaker to Speaker port. Reason: The category of the session object changed or session was just activated.