[16:40:53 ERROR]: Could not load 'plugins/LaserTurrets-3.0.0.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: games/coob/laserturrets/LaserTurrets has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:331) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:254) [patched_1.8.8.jar:git-PaperSpigot-445]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:293) [patched_1.8.8.jar:git-PaperSpigot-445]
    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:202) [patched_1.8.8.jar:git-PaperSpigot-445]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:563) [patched_1.8.8.jar:git-PaperSpigot-445]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_311]
Caused by: java.lang.UnsupportedClassVersionError: games/coob/laserturrets/LaserTurrets has been compiled by a more recent version of the Java Runtime (class file version 61.0), 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_311]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:756) ~[?:1.8.0_311]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_311]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:473) ~[?:1.8.0_311]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:74) ~[?:1.8.0_311]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:369) ~[?:1.8.0_311]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:363) ~[?:1.8.0_311]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_311]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:362) ~[?:1.8.0_311]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:102) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_311]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_311]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_311]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_311]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:65) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[patched_1.8.8.jar:git-PaperSpigot-445]
    ... 6 more