Issue with Uploading Screenshot and Unjust Ban

[unluckyboy_x]

I was banned by the admin of the /A/ name, and I don’t know why. I have no idea. They took a screenshot of me and told me to upload it on Imgur, but I kept getting this error while trying to upload on Imgur. I tried 5-7 times, but I faced the same issue. The error says: 'We don’t support that file type!'
I am in Pakistan, and many servers from Romania do not work without a proxy. When I asked them to upload it on Google Drive or Mediafire and share the link, they refused
and then banned me.
I am providing all the proof, and in the next forum, I will provide my clear proof.
https://postimg.cc/gallery/NrqMd2m
Ban Information
Name: unluckyboy_x
IP: 39.39.44.209
Reason: ss.forum
Unban Time: Permanent Ban
Admin Name: /A/
Admin SteamID: STEAM_0:1:53

[RaZvaN]

You have been unbanned for the pictures from now. Next time move faster and provide the link with pictures on the server!!!