How to convert instagram json chat format to html format?

Question

HTML

You need to convert the json instagram chat format into html format.
You can download the html version on the instagram itself, but everything is scattered there and there is not a lot of information.
I came across a site that converts json to html, but it changes up to 5 MB of information.
Also, I came across a video on YouTube: https://www.youtube.com/watch?v=M0K2HG_uI68
But, alas, it gives an error, and all information about the account in this form, and not as in the video (On ​​the screenshot, the html version, but, except for the format, there are no differences):



I would like to know how else you can transform json to html with the most reliable information (And not like in html - all scattered, 1/2 of the chat is missing, as well as media files)