Error with paper version: 1.21.11

[TSNCM]

Command: //bcpos set 1

Exception in thread "Timer-0" java.lang.NullPointerException: Cannot read field "DUST" because "me.kous500.curvebuilding.bukkit.CurveBuildingPlugin.particles_1_13" is null
	at CurveBuilding.jar//me.kous500.curvebuilding.bukkit.SendParticles.sendCube(SendParticles.java:129)
	at CurveBuilding.jar//me.kous500.curvebuilding.bukkit.SendParticles.sendParticlePlayer(SendParticles.java:87)
	at CurveBuilding.jar//me.kous500.curvebuilding.bukkit.SendParticles.send(SendParticles.java:62)
	at CurveBuilding.jar//me.kous500.curvebuilding.bukkit.SendParticles.run(SendParticles.java:54)
	at java.base/java.util.TimerThread.mainLoop(Timer.java:566)
	at java.base/java.util.TimerThread.run(Timer.java:516)