Well done with your theme! I’m trying to connect the instagram account following the steps in your documentation, unfortunately it seems instagram updated their privacy policy and I’m not able to create a new account in the instagram dev page as your documentation says.
Indeed Instagram has disabled the option to “register new client”. Now we are working on developing new options to plug in Instagram. Meanwhile, you can switch Instagram by means of AJAX or Scrape – simply scrapes the page on the web and parses all the images. Please refer the documentation: https://xtemos.com/docs/basel/faq-guides-2/setup-instagram-api/