The camera suddenly became unusable

I followed the jetson-inference steps and ran some demos.
The camera that worked until the day before stopped working. --model=cat_dog/resnet18.onnx --input_blob=input_0 --output_blob=output_0 --labels=$DATASET/labels.txt

Then I get the error

Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:557 No cameras available
[gstreamer] gstCamera onEOS

By the way, the same error occurs when I run nvgstcapture.

I want to solve this problem for my jetsonlife.

It was due to a camera failure.
It was solved by replacing the camera