[17:18:59 WARN]: [heliosperms] Task #627 for heliosperms v1.2 generated an exception java.lang.NullPointerException at de.heliosdevelopment.heliosperms.spigot.listener.PlayerListener.setPrefix(PlayerListener.java:109) ~[?:?] at de.heliosdevelopment.heliosperms.spigot.listener.PlayerListener.access$000(PlayerListener.java:28) ~[?:?] at de.heliosdevelopment.heliosperms.spigot.listener.PlayerListener$1.run(PlayerListener.java:55) ~[?:?] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-76236cb-9cd1111] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-76236cb-9cd1111] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:722) [spigot.jar:git-Spigot-76236cb-9cd1111] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-76236cb-9cd1111] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:653) [spigot.jar:git-Spigot-76236cb-9cd1111] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:556) [spigot.jar:git-Spigot-76236cb-9cd1111] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]