Why am I called owner: owner [name] in Minecraft?

I created a server and set up luckperms. But now I have the problem that my name is owner: owner: [name] player: player: [name] etc. In the respective groups.

My plugins:

bstats

ChatEx

ChestShop

Citizens

CityBuildV2

Essentials

EssentialsGeoIP

EssentialsXMPP

Luckperms

Multiverse Core

Multiverse portals

Rankup

ScoreBoardPlugin

Shopkeepers

SimpleRename

UberEnchant

Vault

creativeitemcontrol

EssentialsX

EssentialsXChat

EssentialsXProtect

EssentialsXSpawn

PartySystem

PlotSquared

SimpleRename

Sorted ranks

I guess you got it wrong. So you set the prefix wrong. But I'm missing information here (pictures, the command from them, …)

Thanks, edit follows…

Try to leave out this display name. Otherwise I have no idea myself.

No, unfortunately does not work… But thanks for your help