Since yesterday I have had a problem on my server with the Essentials plugin, strangely I cannot perform any command of this plugin, not even when I am an op, I have already enabled the permissions in the essentials settings folder, but still it does not allow me to do anything , I would please if you could tell me some way to solve it, or what I could do, thank you.
This is what it looks like to me when I type some command:
[07:56:02] [Server thread/ERROR] [Essentials]: Command setwarp failed:
java.lang.NullPointerException: null
at com.earth2me.essentials.perm.PermissionsHandler.getName(PermissionsHandler.java:185) ~[?:?]
at com.earth2me.essentials.User.isAuthorizedCheck(User.java:125) ~[?:?]
at com.earth2me.essentials.User.isAuthorized(User.java:101) ~[?:?]
at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:612) ~[?:?]
at com.earth2me.essentials.Essentials.onCommand(Essentials.java:570) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:439b8d1]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:154) ~[SimpleCommandMap.class:439b8d1]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:688) ~[CraftServer.class:439b8d1]
at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1615) ~[pa.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1450) ~[pa.class:?]
at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(CPacketChatMessage.java:50) ~[la.class:?]
at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(CPacketChatMessage.java:11) ~[la.class:?]
at net.minecraft.network.PacketThreadUtil.lambda$checkThreadAndEnqueue$0(PacketThreadUtil.java:14) ~[hv.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_275]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_275]
at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:926) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:461) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:865) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:737) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275]