Dude i cant download your plugin when i click download (with external website) the page say unavailable some gone wrong , days now wait to fix it and cant download..........

Yeah, this was fixed and you can now download directly from SpigotMC.

If you're having issues - try from this link: https://ci.nametagedit.com/job/NametagEdit/lastSuccessfulBuild/artifact/target/NametagEdit.jar