Video not streamed when switch the camera from front to back or Vice versa

Here is the function for toggle camera:-
public func toggleCamera() {
do {
// Access device manager cameras directly, catching any potential nil
let availableCameras = try sharedState.deviceManager!.cameras

// Define scaling mode for the preview view
let scalingMode: ScalingMode = .crop

// Initialize local video streams if nil
if (sharedState.localVideoStreams == nil) {
sharedState.localVideoStreams = [LocalVideoStream]()
}
if(sharedState.isUsingFrontCamera){
// Create and append local video stream from first available camera
let localVideoStream = LocalVideoStream(camera: availableCameras.first{ $0.cameraFacing == .back }!)
sharedState.localVideoStreams!.append(localVideoStream)

// Create preview renderer and view for the local video stream
sharedState.previewRenderer = try VideoStreamRenderer(localVideoStream: sharedState.localVideoStreams!.first!)
sharedState.previewView = try sharedState.previewRenderer!.createView(withOptions: CreateViewOptions(scalingMode: scalingMode))
sharedState.isUsingFrontCamera.toggle()
}else{
let localVideoStream = LocalVideoStream(camera: availableCameras.first{ $0.cameraFacing == .front }!)
sharedState.localVideoStreams!.append(localVideoStream)

// Create preview renderer and view for the local video stream
sharedState.previewRenderer = try VideoStreamRenderer(localVideoStream: sharedState.localVideoStreams!.first!)
sharedState.previewView = try sharedState.previewRenderer!.createView(withOptions: CreateViewOptions(scalingMode: scalingMode))
sharedState.isUsingFrontCamera.toggle()
}

// Start video stream with error handling
sharedState.call!.startVideo(stream: sharedState.localVideoStreams!.first!) { (error) in
if (error != nil) {
sharedState.alertMessage = "Could not share video"
sharedState.showAlert = true
}
else {
sharedState.sendingLocalVideo = true
}
}
} catch let error {
// Handle any errors caught during the process
sharedState.alertMessage = "Error toggling camera: \(error.localizedDescription)"
sharedState.showAlert = true
}
}