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Help, I forgot login when i was creating a skin and now I can't delete

I was creating skins and when I was going to save then I forgot login.
Now I can’t delete them. These are the skins.
http://novask.in/5061426070.png
http://novask.in/5054403096.png
Thanks if someone can help me.

337cb44a3180fec8771c1a2d55397a862fb2137e