[15:25:51] [Server thread/WARN]: [Prison] Task #11 for Prison v2.0 generated an exception
java.lang.NullPointerException
at me.sirfaizdat.prison.mines.Mine.reset(Mine.java:108) ~[?:?]
at me.sirfaizdat.prison.mines.MinesManager$ResetClock.run(MinesManager.java:64) ~[?:?]
at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Spigot-1493]
at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [spigot.jar:git-Spigot-1493]
at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:635) [spigot.jar:git-Spigot-1493]
at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:283) [spigot.jar:git-Spigot-1493]
at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:583) [spigot.jar:git-Spigot-1493]
at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:489) [spigot.jar:git-Spigot-1493]