14.08 20:35:37 [Server] ERROR Could not load 'plugins/CustomDrops.jar' in folder 'plugins'
14.08 20:35:37 [Server] INFO org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/doubleerror/plugin/Main has been compiled by a more recent version of the Java Runtime (class file version 56.0), this version of the Java Runtime only recognizes class file versions up to 52.0
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:331) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:254) [paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:293) [paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:202) [paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:563) [paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
14.08 20:35:37 [Server] INFO Caused by: java.lang.UnsupportedClassVersionError: me/doubleerror/plugin/Main has been compiled by a more recent version of the Java Runtime (class file version 56.0), this version of the Java Runtime only recognizes class file versions up to 52.0
14.08 20:35:37 [Server] INFO at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.net.URLClassLoader.access$100(URLClassLoader.java:74) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:369) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:363) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.net.URLClassLoader.findClass(URLClassLoader.java:362) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:102) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.lang.Class.forName0(Native Method) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_191]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:65) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[paper-1.8.8.jar:git-PaperSpigot-"4c7641d"]
14.08 20:35:37 [Server] INFO ... 6 more