I was playing on my server like normal and then when i change one of my worlds to pvp enabled int the multiverse config, the server went crazy. Here is my error logging:

7:55:17 PM [javastacktrace] java.lang.IllegalArgumentException: Cannot set to an empty path
7:55:17 PM [javastacktrace] at org.apache.commons.lang.Validate.notEmpty(Validate.java:363) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.MemorySection.set(MemorySection.java:163) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.MemorySection.set(MemorySection.java:193) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.YamlConfiguration.convertMapsToSections(YamlConfiguration.java:78) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.YamlConfiguration.convertMapsToSections(YamlConfiguration.java:76) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:66) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:149) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:114) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:176) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at com.onarandombox.MultiverseCore.MultiverseCore.migrateWorldConfig(MultiverseCore.java:558) ~[?:?]
7:55:17 PM [javastacktrace] at com.onarandombox.MultiverseCore.MultiverseCore.loadConfigs(MultiverseCore.java:488) ~[?:?]
7:55:17 PM [javastacktrace] at com.onarandombox.MultiverseCore.MultiverseCore.onEnable(MultiverseCore.java:299) ~[?:?]
7:55:17 PM [javastacktrace] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:350) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:389) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:439) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:375) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at net.minecraft.server.v1_7_R1.MinecraftServer.m(MinecraftServer.java:342) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at net.minecraft.server.v1_7_R1.MinecraftServer.g(MinecraftServer.java:319) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:275) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:175) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [javastacktrace] at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit-1.7.2-R2.0.jar:git-Bukkit-1.7.2-R0.2-50-gdce2b35-b3019jnks]
7:55:17 PM [warning] [AntiXRay] Configuration: There's no world named "survival". Make sure that the worldnames in your config.yml are correct!
7:55:17 PM [warning] [AntiXRay] Configuration: There's no world named "plotworld". Make sure that the worldnames in your config.yml are correct!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: plots (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal plots has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'plots' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: netherspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal netherspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'netherspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: netherhub (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal netherhub has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'netherhub' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: plotspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal plotspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'plotspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: shopspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal shopspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'shopspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: shop (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal shop has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'shop' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: survival (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal survival has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'survival' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: survivalspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal survivalspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'survivalspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: endspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal endspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'endspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: end (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal end has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'end' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: pvpspawn (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal pvpspawn has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'pvpspawn' not loaded due to invalid location!
7:55:18 PM [warning] [MVPLogging] Failed Parsing World for: pvp (World Error, World did not exist or was not imported into Multiverse-Core!)
7:55:18 PM [warning] [MVPLogging] Portal pvp has an invalid LOCATION!
7:55:18 PM [warning] [MVPLogging] Portal 'pvp' not loaded due to invalid location!