Hyperion Suddenly Stops Working

My device is working before but when I tried it again after unplugging everything and plugging it back in, it doesnt work anymore. I thought maybe it was because the video capture device was plugged this time in different USB port but I replug it again to the same USB port as before but it doesnt help.

I am using Hyperian in Raspberry Pi 3.

dmesg | grep -i Video

Outputs the one in photos.

I used GPIO18. It works now, I restarted the Raspberry Pi like 6 times. Thanks for the reply. I have another problem now but I'm not sure if I need to make a different thread for it.