If not, restart your device and check if the problem is resolved
If you are using a VPN, please disable it, refresh the page, and check if the problem is resolved.
If you are using Bitdefender antivirus or VPN software, the issue can be resolved by disabling the ‘anti-tracker’ feature in the software. See here for further information.
If it still won’t work, please get in touch with the following information:
The course you’re stuck on
The URL of the page where the video is located that won’t play
Whether you’re using a phone (Android or iPhone?) or laptop (Windows or Mac?) to access the material
Which browser you are using (e.g. Chrome, Edge, Safari)