하마치 서버 ?오류? 1.7.10

하마치 서버를 열어서 친구들과 놀려고 했는데 서버가 다 열리니 이런 문구

[16:51:34 WARN]: [ParticleText] Task #42 for ParticleText v1.3 generated an exception
me.zenith.particletext.b.m: java.lang.ClassNotFoundException: net/minecraft/server/v1_7_R4/PacketPlayOutWorldParticles
        at me.zenith.particletext.b.j.initialize(Unknown Source) ~[?:?]
        at me.zenith.particletext.b.j.<init>(Unknown Source) ~[?:?]
        at me.zenith.particletext.b.a.a(Unknown Source) ~[?:?]
        at me.zenith.particletext.c.a.c(Unknown Source) ~[?:?]
        at me.zenith.particletext.c.c.run(Unknown Source) ~[?:?]
        at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71) ~[CraftTask.class:1.7.10-1614.57]
        at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:346) [CraftScheduler.class:1.7.10-1614.57]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:905) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432) [lt.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_171]
Caused by: java.lang.ClassNotFoundException: net/minecraft/server/v1_7_R4/PacketPlayOutWorldParticles
        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_171]
        at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_171]
        at me.zenith.particletext.b.r.getClass(Unknown Source) ~[?:?]
        ... 12 more

...가 뜨며 명령어(오피) 를 사용하려 해도 이 문자들이 도배되며 아무것도 못 하는 상황인데요 마잘알님들 해결 방법좀여!! ㅎㅎ