2018-8-20 15:19:31 [CRITICAL] Could not execute taskHandler 2: gt/creeperface/holograms/entity/HologramEntity
2018-8-20 15:19:31 [ALERT] java.lang.RuntimeException: java.lang.NoClassDefFoundError: gt/creeperface/holograms/entity/HologramEntity
	at cn.nukkit.scheduler.ServerScheduler.runTasks(ServerScheduler.java:299)
	at cn.nukkit.scheduler.ServerScheduler.mainThreadHeartbeat(ServerScheduler.java:277)
	at cn.nukkit.Server.tick(Server.java:1090)
	at cn.nukkit.Server.tickProcessor(Server.java:856)
	at cn.nukkit.Server.start(Server.java:833)
	at cn.nukkit.Server.<init>(Server.java:516)
	at cn.nukkit.Nukkit.main(Nukkit.java:105)
Caused by: java.lang.NoClassDefFoundError: gt/creeperface/holograms/entity/HologramEntity
	at Zero.LoveClear.Tasks.ClearLag.onRun(ClearLag.java:24)
	at cn.nukkit.scheduler.Task.run(Task.java:51)
	at cn.nukkit.scheduler.TaskHandler.run(TaskHandler.java:99)
	at cn.nukkit.scheduler.ServerScheduler.runTasks(ServerScheduler.java:296)
	... 6 more
Caused by: java.lang.ClassNotFoundException: gt.creeperface.holograms.entity.HologramEntity
	at java.net.URLClassLoader.findClass(Unknown Source)
	at cn.nukkit.plugin.PluginClassLoader.findClass(PluginClassLoader.java:44)
	at cn.nukkit.plugin.PluginClassLoader.findClass(PluginClassLoader.java:28)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 10 more