Nitrado Banngrund not displayed?

I rented a Minecraft server from Nitrado. My problem: If I ban someone and give a reason for the ban, it is not displayed (see picture). What do I have to do for it to appear? I have full access to the server and thus also to all system files. I thank you in advance 🙂

Image: stated reason for ban: end.
↳ The reason for the ban is not displayed

Moin and a happy new year,

Either you edit it manually in the banned-players.json and enter a reason there or you use essentials, change it to German and enter a reason when banning, then this is also displayed in German with text.

Provided the banned person has Minecraft in German and not in another language, the text will always be displayed in German.

The reason is displayed when you try to come back to the server. But I want it to appear at the time of the ban.
Is that possible?

That will probably not be possible, as the reason is first saved and only when the player tries to log in again can the reason be seen.

Since I've never been banned, I can't understand what happened.