I fucking hate GitLab. They were supposed to change my username from "Niwla23" to "niwla23". Didn't work. So I contacted their support and they tried and also got an error. They told me to remove ALL docker images (I have over 120 repos to check). And it seems they removed all the aliases so these URLs got invalid. The ticket is still open, I hope Niwla23 will redirect to niwla23 soon.