Hello Helene,
Thank you for contacting Canvas Support. We're sorry to hear you've been experiencing issues with Flipgrid. Are you trying to add Canvas to the Flipgrid site/app or trying to integrated Flipgrid to Canvas? Where and how are you trying to add the videos - to an assignment, discussion, etc? These guides from Flipgrid and Canvas may be helpful:
Using FlipGrid in Canvas - Instructure Community
https://static.flipgrid.com/docs/Canvas_Integration.pdf
If you still can't get it, you may want to contact Flipgrid or Canavs support or even your school helpdesk for further assistance:
Because of the complexity of the issue, and the concerns for privacy, it would be best if you contacted Canvas Support directly to pinpoint the source of the issue and provide a resolution:
How do I contact Canvas Support? - Instructure Community
