Bug Report

Type /ver NametagEdit and post the output.
4.1.6

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
git-Paper-1134 (MC: 1.12)

Please explain your issue. How do you trigger it?
Error typing command /nte reload

Are there any errors in the console? Please use: https://pastebin.com
https://pastebin.com/Wj2yF6yL

Please try version 4.1.7 available on the Jenkins build server. This should resolve the issue. If not, please reopen this issue.

Looks like the first instance of a concurrency issue as a direct result of dc7cb72

There will be an update soon.