Problem z AZRank

Używam najnowszego silnika PaperSpigot(141) na wersję mc 1.14.4 i podczas włączania serwera wyświetla się taki błąd: 

23:15:39 [WARNING] [AZRank] Plugin AZRank v1.3.b4 generated an exception while executing task 4
23:15:39 java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;
23:15:40     at pl.azpal.azrank.Metrics.postPlugin(Metrics.java:333) ~[?:?]
23:15:40     at pl.azpal.azrank.Metrics.access$400(Metrics.java:67) ~[?:?]
23:15:40     at pl.azpal.azrank.Metrics$1.run(Metrics.java:242) ~[?:?]
23:15:40     at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[Paper-latest.jar:git-Paper-141]
23:15:40     at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[Paper-latest.jar:git-Paper-141]
23:15:40     at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[Paper-latest.jar:git-Paper-141]
23:15:40     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_211]
23:15:40     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_211]
23:15:40     at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]

a podczas próby wpisania jakiejkolwiek komendy z tego pluginu wyskakuje taki błąd: 

23:20:09 [SEVERE] null
23:20:09 org.bukkit.command.CommandException: Unhandled exception executing command 'azrank' in plugin AZRank v1.3.b4
23:20:09 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[Paper-latest.jar:git-Paper-141]
23:20:09 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:739) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1800) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1608) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:1012) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:1005) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:988) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:922) ~[Paper-latest.jar:git-Paper-141]
23:20:10 	at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
23:20:10 Caused by: java.lang.UnsupportedOperationException: SuperPerms no group permissions.
23:20:10 	at net.milkbowl.vault.permission.plugins.Permission_SuperPerms.getPlayerGroups(Permission_SuperPerms.java:91) ~[?:?]
23:20:10 	at pl.azpal.azrank.permissions.AZVaultAdapter.getPlayersGroups(AZVaultAdapter.java:34) ~[?:?]
23:20:10 	at pl.azpal.azrank.AZRank.infoCMD(AZRank.java:1010) ~[?:?]
23:20:10 	at pl.azpal.azrank.AZRank.onCommand(AZRank.java:178) ~[?:?]
23:20:10 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[Paper-latest.jar:git-Paper-141]

przy czym plugin w ogóle nie działa. Poszukuje więc alternatywy dla AZRank, najbardziej zależy mi na możliwości ustawiania rangi na czas.