I have

downloaded it
saved it to gif (it was a jpeg which is what caused it to bork)
uploaded it again to the tm-img site

If you can go into your profile and get to the avatar image settings.
select the second option and put in this code https://www.tm-img.com/images/2023/12/17/IMG_6028.gif
go to the bottom of the page and hit save!

It has worked for my avatar as a test, hopefully you can see this?

I will flip mine back shortly so we don't get confused...... santahohoho