Could not load 'plugins\Tutorial.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: Plugin already initialized!
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:139) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:334) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:253) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.loadPlugins(CraftServer.java:350) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.reload(CraftServer.java:808) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.Bukkit.reload(Bukkit.java:576) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:710) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchServerCommand(CraftServer.java:695) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at net.minecraft.server.v1_14_R1.DedicatedServer.handleCommandQueue(DedicatedServer.java:433) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:397) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:971) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:816) [spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
Caused by: java.lang.IllegalArgumentException: Plugin already initialized!
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:167) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:52) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at me.icebo.Tutorial.Tutorial.<init>(Tutorial.java:11) ~[?:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_221]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_221]
        at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_221]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:71) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        ... 14 more
Caused by: java.lang.IllegalStateException: Initial initialization
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:170) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:52) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at me.icebo.Tutorial.Tutorial.<init>(Tutorial.java:11) ~[?:?]
        at me.icebo.Tutorial.Tutorial.<clinit>(Tutorial.java:15) ~[?:?]
        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_221]
        at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_221]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:59) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot-1.14.4.jar:git-Spigot-9de398a-9c887d4]
        ... 14 more