Hopefully fixes startup crashes

BauSystem_Main/src/de/steamwar/bausystem/region/BackupScheduler.java

@@ -20,6 +20,7 @@
 package de.steamwar.bausystem.region;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.linkage.Disable;
 import de.steamwar.bausystem.linkage.Enable;
 import de.steamwar.bausystem.linkage.LinkageType;
 import de.steamwar.bausystem.linkage.Linked;
@@ -29,7 +30,10 @@ import org.bukkit.scheduler.BukkitRunnable;
 
 
 @Linked(LinkageType.ENABLE_LINK)
-public class BackupScheduler implements Enable {
+@Linked(LinkageType.DISABLE_LINK)
+public class BackupScheduler implements Enable, Disable {
+
+    private static final long PERIOD = 20 * 60 * 30;
 
     @Override
     public void enable() {
@@ -39,7 +43,13 @@ public class BackupScheduler implements Enable {
                 final Iterator<Region> regions = Region.getREGION_MAP().values().stream().filter(region -> region.get(Tag.CHANGED)).iterator();
                 BackupScheduler.this.doBackup(regions);
             }
-        }.runTaskTimer(BauSystem.getInstance(), 20, 20*60*30);
+        }.runTaskTimer(BauSystem.getInstance(), PERIOD, PERIOD);
+    }
+
+    @Override
+    public void disable() {
+        final Iterator<Region> regions = Region.getREGION_MAP().values().stream().filter(region -> region.get(Tag.CHANGED)).iterator();
+        BackupScheduler.this.doBackup(regions);
     }
 
     public void doBackup(final Iterator<Region> regionIterator) {
@@ -56,6 +66,6 @@ public class BackupScheduler implements Enable {
                     region.remove(Tag.CHANGED);
                 }
             }
-        }.runTaskTimer(BauSystem.getInstance(), 0, 20);
+        }.runTaskTimer(BauSystem.getInstance(), 0, 100);
     }
 }