Instagram feed not working
You need have theme version 4.4.2 or higher(make sure sure you use compatible prestashop version) - for ps 1.7.7
or theme 4.3.8 for ps 1.7.6
Then connect your instagram account
Allow access to access token generator app
Verify connection - token have expiration date but it will be auto renewed ~15 days before it's expiration
Then go to page builder, edit instagram widget and change connection type to "with access token"