diff --git a/PlotSquared/src/com/intellectualcrafters/plot/commands/Helpers.java b/PlotSquared/src/com/intellectualcrafters/plot/commands/Helpers.java
index ae7d9b1a4..e5525a7bc 100644
--- a/PlotSquared/src/com/intellectualcrafters/plot/commands/Helpers.java
+++ b/PlotSquared/src/com/intellectualcrafters/plot/commands/Helpers.java
@@ -29,8 +29,8 @@ public class Helpers extends SubCommand {
     }
 
     private boolean hasBeenOnServer(String name) {
-        Player plr;
-        if ((plr = Bukkit.getPlayer(name)) == null) {
+        Player plr = Bukkit.getPlayerExact(name);
+        if (plr == null) {
             OfflinePlayer oplr = Bukkit.getOfflinePlayer(name);
             if (oplr == null) {
                 return false;
@@ -74,11 +74,15 @@ public class Helpers extends SubCommand {
                 return true;
             }
             UUID uuid = null;
-            if ((Bukkit.getPlayer(args[1]) != null) && Bukkit.getPlayer(args[1]).isOnline()) {
-                uuid = Bukkit.getPlayer(args[1]).getUniqueId();
+            if ((Bukkit.getPlayerExact(args[1]) != null)) {
+                uuid = Bukkit.getPlayerExact(args[1]).getUniqueId();
             } else {
                 uuid = Bukkit.getOfflinePlayer(args[1]).getUniqueId();
             }
+            if (uuid == null) {
+                PlayerFunctions.sendMessage(plr, C.PLAYER_HAS_NOT_BEEN_ON);
+                return true;
+            }
             plot.addHelper(uuid);
             DBFunc.setHelper(plr.getWorld().getName(), plot, Bukkit.getOfflinePlayer(args[1]));
             PlayerPlotHelperEvent event = new PlayerPlotHelperEvent(plr, plot, uuid, true);
@@ -101,11 +105,15 @@ public class Helpers extends SubCommand {
                 return true;
             }
             UUID uuid = null;
-            if (Bukkit.getPlayer(args[1]).isOnline()) {
-                uuid = Bukkit.getPlayer(args[1]).getUniqueId();
+            if (Bukkit.getPlayerExact(args[1]) != null) {
+                uuid = Bukkit.getPlayerExact(args[1]).getUniqueId();
             } else {
                 uuid = Bukkit.getOfflinePlayer(args[1]).getUniqueId();
             }
+            if (uuid == null) {
+                PlayerFunctions.sendMessage(plr, C.PLAYER_HAS_NOT_BEEN_ON);
+                return true;
+            }
             if (!plot.helpers.contains(uuid)) {
                 PlayerFunctions.sendMessage(plr, C.WAS_NOT_ADDED);
                 return true;
diff --git a/PlotSquared/src/com/intellectualcrafters/plot/commands/Trusted.java b/PlotSquared/src/com/intellectualcrafters/plot/commands/Trusted.java
index 4eca67bd0..b3748a554 100644
--- a/PlotSquared/src/com/intellectualcrafters/plot/commands/Trusted.java
+++ b/PlotSquared/src/com/intellectualcrafters/plot/commands/Trusted.java
@@ -29,8 +29,8 @@ public class Trusted extends SubCommand {
     }
 
     private boolean hasBeenOnServer(String name) {
-        Player plr;
-        if ((plr = Bukkit.getPlayer(name)) == null) {
+        Player plr = Bukkit.getPlayerExact(name);
+        if (plr == null) {
             OfflinePlayer oplr = Bukkit.getOfflinePlayer(name);
             if (oplr == null) {
                 return false;
@@ -74,11 +74,15 @@ public class Trusted extends SubCommand {
                 return true;
             }
             UUID uuid = null;
-            if ((Bukkit.getPlayer(args[1]) != null) && Bukkit.getPlayer(args[1]).isOnline()) {
-                uuid = Bukkit.getPlayer(args[1]).getUniqueId();
+            if ((Bukkit.getPlayerExact(args[1]) != null)) {
+                uuid = Bukkit.getPlayerExact(args[1]).getUniqueId();
             } else {
                 uuid = Bukkit.getOfflinePlayer(args[1]).getUniqueId();
             }
+            if (uuid == null) {
+                PlayerFunctions.sendMessage(plr, C.PLAYER_HAS_NOT_BEEN_ON);
+                return true;
+            }
             plot.addTrusted(uuid);
             DBFunc.setTrusted(plr.getWorld().getName(), plot, Bukkit.getOfflinePlayer(args[1]));
             PlayerPlotTrustedEvent event = new PlayerPlotTrustedEvent(plr, plot, uuid, true);
@@ -101,11 +105,15 @@ public class Trusted extends SubCommand {
                 return true;
             }
             UUID uuid = null;
-            if (Bukkit.getPlayer(args[1]).isOnline()) {
-                uuid = Bukkit.getPlayer(args[1]).getUniqueId();
+            if (Bukkit.getPlayerExact(args[1]) != null) {
+                uuid = Bukkit.getPlayerExact(args[1]).getUniqueId();
             } else {
                 uuid = Bukkit.getOfflinePlayer(args[1]).getUniqueId();
             }
+            if (uuid == null) {
+                PlayerFunctions.sendMessage(plr, C.PLAYER_HAS_NOT_BEEN_ON);
+                return true;
+            }
             if (!plot.trusted.contains(uuid)) {
                 PlayerFunctions.sendMessage(plr, C.T_WAS_NOT_ADDED);
                 return true;
diff --git a/PlotSquared/src/com/intellectualcrafters/plot/listeners/PlayerEvents.java b/PlotSquared/src/com/intellectualcrafters/plot/listeners/PlayerEvents.java
index c3c3a2666..e90e4596c 100644
--- a/PlotSquared/src/com/intellectualcrafters/plot/listeners/PlayerEvents.java
+++ b/PlotSquared/src/com/intellectualcrafters/plot/listeners/PlayerEvents.java
@@ -456,13 +456,12 @@ public class PlayerEvents implements Listener {
     @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
     public void onStructureGrow(final StructureGrowEvent e) {
         List<BlockState> blocks = e.getBlocks();
-        boolean f = false;
-        for (int i = 0; i < blocks.size(); i++) {
-            if (f || isPlotWorld(blocks.get(i).getLocation())) {
-                f = true;
+        boolean remove = false;
+        for (int i = blocks.size() -1; i >= 0; i--) {
+            if (remove || isPlotWorld(blocks.get(i).getLocation())) {
+                remove = true;
                 if (!isInPlot(blocks.get(i).getLocation())) {
                     e.getBlocks().remove(i);
-                    i--;
                 }
             }
         }