Hello Martin,

Thanks

Test page link is here :
https://www.iducation.tv/foliovision-test-hls-steaming-video/

and for more investigation I also installed another vanilla wordpress with the same current version and the same FV player plug-ins in the subdomain website, which occur the same technical term error.

if you want to see more technical issues inside, I will give you an admin access to the sub-domain website.

https://www.iducation.tv/sub/