Why i can't use Steam on the mojang account.

[zlappedx3]

I'm try on EntityJoinWorldEvent on cilent side only when i use account of mojang i mean real account i try ImageIO.read() url on real account but it send can't use steam url but if i use on the eclipse IDE or other lancher at is not mojang ImageIO.read() can normally running when i print Cause() have this result.

sun.security.validator.ValidatorException: PKIX path building failed:
     sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

This is my link for SteamIn : https://api.minetools.eu/skin/davethepig101

And i try send the skin in game use by TextureUtil.readBufferedImage() can't use on account of mojang too.

[zlappedx3]

In really i don't want to talk about this i just convert the skin to byte array for save in data world for use on the gui screen but have the problem just can't ImageIO of skin if the player not in the world i can't use skin from that player but if i Steam out from link gui screen on game will slowly open gui how to fixed this problem ?

Edited February 2, 2020 by zlappedx3