Could not load 'plugins\AntiCheat.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: de/stuporio/pvpgym/Main has been compiled by a more recent version of the Java Runtime (class file version 59.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:139) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:301) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:383) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:185) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:808) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]
Caused by: java.lang.UnsupportedClassVersionError: de/stuporio/pvpgym/Main has been compiled by a more recent version of the Java Runtime (class file version 59.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_281]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:163) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:96) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_281]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot.jar:git-Spigot-37d799b-3eb7236]
... 7 more
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}