Problem/Bug LiteDonate does not work. Please help

> [03:28:34 ОШИБКА]: ноль

org.bukkit.command.CommandException: необработанное исключение при выполнении команды «givedonate» в дополнене LiteDonate v1.0

в org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[server.jar:git-Spigot-79a30d7-f4830a1]

на org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[server.jar:git-Spigot-79a30d7-f4830a1]

в org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:648) ~[server.jar:git-Spigot-79a30d7-f4830a1]

в net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1401) [server.jar:git-Spigot-79a30d7-f4830a1]

в net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1236) [server.jar:git-Spigot-79a30d7-f4830a1]

в net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [server.jar:git-Spigot-79a30d7-f4830a1]

в net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [server.jar:git-Spigot-79a30d7-f4830a1]

в net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-79a30d7-f4830a1]

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_312]

at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_312]

at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [server.jar:git-Spigot-79a30d7-f4830a1]

at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [server.jar:git-Spigot-79a30d7-f4830a1]

at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [server.jar:git-Spigot-79a30d7-f4830a1]

at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [server.jar:git-Spigot-79a30d7-f4830a1]

at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [server.jar:git-Spigot-79a30d7-f4830a1]

at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]

Caused by: java.lang.NoClassDefFoundError: ru/tehkode/permissions/bukkit/PermissionsEx

at ru.lyooxa.donate.Main.setGroup(Main.java:73) ~[?:?]

at ru.lyooxa.donate.GiveCmd.onCommand(GiveCmd.java:32) ~[?:?]

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[server.jar:git-Spigot-79a30d7-f4830a1]

... 15 more

Caused by: java.lang.ClassNotFoundException: ru.tehkode.permissions.bukkit.PermissionsEx

at java.net.URLClassLoader.findClass(URLClassLoader.java:387) ~[?:1.8.0_312]

в org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:152) ~[server.jar:git-Spigot-79a30d7-f4830a1]

в org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:100) ~[server.jar:git-Spigot-79a30d7-f4830a1]

в java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_312]

в java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_312]