oussama00 Ah that is strange, with us not being able to see the error we are unable to troubleshoot this for you further at this stage.
The things that you can try are to:
1) Check and remove ad blockers or any pop up extension blockers that you have on your device
2) Clear your devices cache and cookies and then re-try
3) Try viewing your site in incognito mode
4) Check that you are logged out of your content management system
5) VPN into a different country to see if you can see the Humix videos playing then