How do I set world border corners?

Minecraft version: 1.19.2
Modloader: Forge
Forge version: 43.2.0
Environment: Multiplayer

Mod name: World Border
Mod version: worldborder-1.19.2-4.1.jar

So I got a Minecraft server it's an earth replica and I couldn't figure out how to set corners on the border

so, its been 2 days, could I get some help?

ok never mind that mod dosent work that well