YouTube and Vimeo seem to no longer support the Flash Player for management in Garry's Mod, it was set by the fact that I made an error when trying to play a video from YouTube and Vimeo today:

Youtube Error Screenshot - https://prnt.sc/kvw3q0
Vimeo Error Screenshot -http://prntscr.com/kvw4qu

Thank you for the wonderful library, I hope you will correct these problems!