If i tamed a horse and I type /zh claim (Name) i get this error

.... 14:22:32 WARN: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
.... 14:22:32 WARN: at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
.... 14:22:32 WARN: at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
.... 14:22:32 WARN: at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.managers.CommandManager.onCommand(CommandManager.java:47)
.... 14:22:32 WARN: at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
.... 14:22:32 WARN: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
.... 14:22:32 WARN: at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:739)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1804)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1612)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:5)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.PlayerConnectionUtils$$Lambda$3593.0000000060096290.run(Unknown Source)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:1029)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:1022)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:1006)
.... 14:22:32 WARN: at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:929)
.... 14:22:32 WARN: at java.lang.Thread.run(Thread.java:819)
.... 14:22:32 WARN: Caused by: java.lang.UnsupportedOperationException: SuperPerms no group permissions.
.... 14:22:32 WARN: at net.milkbowl.vault.permission.plugins.Permission_SuperPerms.getPrimaryGroup(Permission_SuperPerms.java:96)
.... 14:22:32 WARN: at net.milkbowl.vault.permission.Permission.getPrimaryGroup(Permission.java:679)
.... 14:22:32 WARN: at net.milkbowl.vault.permission.Permission.getPrimaryGroup(Permission.java:691)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.managers.PermissionManager.getPrimaryGroup(PermissionManager.java:32)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.managers.ConfigManager.getGroupName(ConfigManager.java:307)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.managers.ConfigManager.getClaimsLimit(ConfigManager.java:47)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.commands.AbstractCommand.hasReachedClaimsLimit(AbstractCommand.java:339)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.commands.CommandClaim.execute(CommandClaim.java:43)
.... 14:22:32 WARN: at com.github.zedd7.zhorse.commands.CommandClaim.(CommandClaim.java:24)
.... 14:22:32 WARN: ... 24 more

You need to use a permission plugin supporting permission groups.