Automatically add lightbox to WordPress video links (YouTube, Vimeo)

I don’t have set a “Link to the page you need help with” because I’ve have fixed the issue turning off that option.
Having it turned on I have a page with html lines like
<a href="https://youtu.be/HPBv8gABpT0">https://youtu.be/HPBv8gABpT0</a>
When clicking on them a black lightbox window opens a remains black.
In Android devices a broken image is displayed and “HPBv8gABpT0’s server IP address could not be found”
That’s because a malformed url is created.
Please fix this.
Thank you