Plex Tuner Service: Critical: libusb_init failed?

Hello there,

yesterday I installed Plex Media Server on my CentOS 7 VPS box and at the beginning everything was golden but after about 30 minutes into watching a movie the Plex client displayed the following error.

An error occurred trying to play “blah”.
shaka1001 (Network)

The service status shows problems with “libusb_init”.

Aug 28 08:51:59 <server> Plex Tuner Serv[25549]: Plex Tuner Service: Critical: libusb_init failed

Now I have no idea how to debug this.

Could someone help?