Google has changed student access to YouTube. Students can't search for videos at youtube.com. Teachers can still assign videos in Google Classroom. If students need to view a video link from a teacher's Google Doc or Slide they should hover over the video and click on "open preview".
Technical difficulties?!
Try Updating Chrome and Clearing Cache & Cookies first - it could be the solution to all of your problems!
Talk to your Building Tech TA for district pricing or use the Amazon Link below.