[11:56:25 ERROR]: Error occurred while enabling MBedwars v4.0.18.7 (Is it up to date?)
java.lang.NullPointerException
        at de.marcely.bedwars.versions.v.c(R3_8.java:1296) ~[?:?]
        at de.marcely.bedwars.versions.B.c(VersionInstance.java:272) ~[?:?]
        at de.marcely.bedwars.util.i.a(ItemStackUtil.java:319) ~[?:?]
        at de.marcely.bedwars.config.Config.save(Config.java:2628) ~[?:?]
        at de.marcely.bedwars.config.Config.a(Config.java:78) ~[?:?]
        at de.marcely.bedwars.config.Config.a(Config.java:1512) ~[?:?]
        at de.marcely.bedwars.config.Config.a(Config.java:1504) ~[?:?]
        at de.marcely.bedwars.MBedwars.onEnable(MBedwars.java:243) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332) [patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:407) [patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:359) [patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:318) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:408) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:372) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:327) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:267) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:563) [patched.jar:git-PaperSpigot-"4c7641d"]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_262]