[20:08:56] [MBedwars Thread (Backup)/WARN]: Exception in thread "MBedwars Thread (Backup)" java.lang.NullPointerException: Cannot invoke "org.bukkit.block.data.BlockData.getAsString(boolean)" because "this.a" is null
[20:08:56] [MBedwars Thread (Backup)/WARN]:     at MBedwars-5.0.6.jar//de.marcely.bedwars.ka.getAsString(V13BlockData.java:30)
[20:08:56] [MBedwars Thread (Backup)/WARN]:     at MBedwars-5.0.6.jar//de.marcely.bedwars.config.Config.I(Config.java:2797)
[20:08:56] [MBedwars Thread (Backup)/WARN]:     at MBedwars-5.0.6.jar//de.marcely.bedwars.config.Config.save(Config.java:1743)
[20:08:56] [MBedwars Thread (Backup)/WARN]:     at MBedwars-5.0.6.jar//de.marcely.bedwars.config.Config$1.run(Config.java:1513)