"Failed to verify username"

[hollow haven]

I have an external server and just setting it up now.

https://support.minehut.com/hc/en-us/articles/33252734474899-How-to-Setup-a-Minehut-External-Hosted-Server i am using this guide

and its paper server running 1.21.8

all the steps here have been completed

all fixed, something was wrong with the startup flags