Fix 1.18

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/ServerStarter.java

@@ -103,6 +103,7 @@ public class ServerStarter {
 
     public ServerStarter build18(UUID owner) {
         directory = new File(SERVER_PATH, "Bau18");
+        serverJar = "paper-1.18.2.jar";
         worldDir = WORLDS18_PATH;
         worldName = String.valueOf(SteamwarUser.get(owner).getId());
         buildWithWorld(owner, new File(directory, "Bauwelt").getPath());