[22:47:48 WARN]: java.lang.NullPointerException
[22:47:48 WARN]:        at com.avrgaming.civcraft.structure.barracks.Barracks.saveNow(Barracks.java:62)
[22:47:48 WARN]:        at com.avrgaming.civcraft.database.SQLUpdate.run(SQLUpdate.java:64)
[22:47:48 WARN]:        at org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftTask.run(CraftTask.java:81)
[22:47:48 WARN]:        at org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52)
[22:47:48 WARN]:        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[22:47:48 WARN]:        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[22:47:48 WARN]:        at java.lang.Thread.run(Unknown Source)