Have tried to change my forum Avatar to no avail

I just want this picture: https://j.gifs.com/vgMOyL.gif

When I select the option and save, it reverts to another option, and when I try to upload it, it says the upload took too long.

What do?

fixed it for you, where it says Https just remove the ‘s’ when doing a prof pic by URL

You’re a legend, thank you!