Processing can't find the camera - Video Libraries don't work

At first I was having problems with the plugin. It kept saying the plugin didn’t exists so I delete and redownload the application and now its say this…

WARNING: no real random source present!
Processing video library using GStreamer 1.16.2
IllegalStateException: Could not find any devices
IllegalStateException: Could not find any devices
IllegalStateException: Could not find any devices
IllegalStateException: Could not find any devices

do anybody have any ideas how to fix this?