18:14:19 [INFO] [Backup] String not found - schedlastbackup
18:14:19 [WARNING] Can't keep up! Did the system time change, or is the server o
verloaded?
18:14:19 [WARNING] Task of 'mcMMO' generated an exception
java.lang.NullPointerException
        at com.gmail.nossr50.datatypes.PlayerProfile.addXP(PlayerProfile.java:10
10)
        at com.gmail.nossr50.runnables.GainXp.run(GainXp.java:42)
        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(C
raftScheduler.java:126)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
18:14:19 [WARNING] Task of 'mcMMO' generated an exception
java.lang.NullPointerException
        at com.gmail.nossr50.datatypes.PlayerProfile.addXP(PlayerProfile.java:10
10)
        at com.gmail.nossr50.runnables.GainXp.run(GainXp.java:42)
        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(C
raftScheduler.java:126)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
18:14:19 [WARNING] Task of 'mcMMO' generated an exception
java.lang.NullPointerException
        at com.gmail.nossr50.datatypes.PlayerProfile.addXP(PlayerProfile.java:10
10)
        at com.gmail.nossr50.runnables.GainXp.run(GainXp.java:42)
        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(C
raftScheduler.java:126)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)