Anrie

Hello everyone, having a problem logging on to a modded server that I manage. What can I do to fix this? What I see in the console window [04:06:05] [Server thread/WARN]: Failed to handle packet for /198.2.39.106:64385 net.minecraft.util.ReportedException: Ticking player at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:459) ~[oq.class:?] at net.minecraft.network.NetHandlerPlayServer.redirect$onPlayerTick$zik000(NetHandlerPlayServer.java:2030) ~[pa.class:?] at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:173) ~[pa.class:?] at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209) ~[NetworkDispatcher$1.class:?] at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285) ~[gw.class:?] at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180) [oz.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:788) [MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396) [nz.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_141] Caused by: java.lang.NoClassDefFoundError: com/pg85/otg/forge/dimensions/WorldProviderOTG at com.pg85.otg.forge.asm.OTGHooks.getGravityFactor(OTGHooks.java:26) ~[OTG-Core.jar:?] at net.minecraft.entity.EntityLivingBase.func_191986_a(EntityLivingBase.java:1968) ~[vp.class:?] at net.minecraft.entity.player.EntityPlayer.func_191986_a(EntityPlayer.java:1819) ~[aed.class:?] at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2384) ~[vp.class:?] at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:513) ~[aed.class:?] at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2170) ~[vp.class:?] at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:234) ~[aed.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:382) ~[oq.class:?] ... 10 more What player sees https://i.gyazo.com/4364777a853ceee1026c2289b8b52db3.png