I considered replacing my profile picture, so I went to my settings and tried to upload a new one. At first it looked like it was working, but when I refreshed the page after clicking ‘Save’, nothing happened.
So I turned off my content blocking extensions, allowed Opera to permit trackers, advertisements, and protected content, and I retried to upload my profile picture.
Are you using a VPN or some other proxy? My first impression was that it may be related to file size, but the error message seems to indicate an "issue" with your public IP address
Have you been uploading (or attempting to upload) a lot, or did you get this error message on the first try? I know that something similar happened to me when I was uploading many images in a row
I had a similar issue like this before, @[email protected] managed to help me through this. You should message him about it, he might be able to get you through this as well.