The same problem happened to me today. Everything was smooth yesterday and I’ve updated the WP 5.8.1 . While in the Editing screen at the backend my video plays. But at the frontend when I try to play the video it says:
“html5: Video loading aborted
It seems this video doesn’t belong your vimeo account or you miss the video_files capability for your API key”
I’ve checked the template and it says:
“It appears there are no Flowplayer scripts on your site, your videos might not be playing, please check. Check your template’s header.php file if it contains wp_head() function call and footer.php should contain wp_footer()!
It appears there are no jQuery library on your site, your videos might not be playing, please check.”
My vimeo account access token; Your Vimeo access token has been successfully verified (last check: Thu, 09 Sep 2021 11:04:54 +0000)
I don’t use turbocharge Ajax Vimeo Loading.
Could you please help me to resolve?