Plot

[23:59:23] [Server thread/ERROR]: Could not load 'plugins/PlotRankup.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/intellectualcrafters/plot/AbstractFlag
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:336) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:258) [custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugins(CraftServer.java:369) [custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:152) [custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:458) [custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.NoClassDefFoundError: com/intellectualcrafters/plot/AbstractFlag
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_21]
    at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_21]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    ... 6 more
Caused by: java.lang.ClassNotFoundException: com.intellectualcrafters.plot.AbstractFlag
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_21]
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_21]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_21]
    at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_21]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_21]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_21]
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_21]
    at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_21]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[custom.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
    ... 6 more