If it helps, stop by chat.indieweb.org/wordpress and we can help in realtime.
If I just put in the site url: https://t.co/yLaECEe0bz into Bridgy Instagram page I get:
HTTP Error 400: 400 Bad Request The server could not comply with the request since it is either malformed or otherwise incorrect. IndieAuth verification failed: 500 WordPress › Error html
— Tevya (@tevyaw) August 4, 2019
David Shanske
My day job is in training for an airline. I also develop Indieweb WordPress plugins so that others can take control of their online identity.