You tried going to https://buddhism.arts.ubc.ca/2016/05/19/upcoming-talk-by-dr-dzung-vo-the-mindful-teen-secular-and-buddhist-mindfulness-for-adolescents/, and it doesn't exist. All is not lost! You can search for what you're looking for.
https://buddhism.arts.ubc.ca/2016/05/19/upcoming-talk-by-dr-dzung-vo-the-mindful-teen-secular-and-buddhist-mindfulness-for-adolescents/