diff --git a/src/main/java/gq/bxteam/ndailyrewards/manager/UserManager.java b/src/main/java/gq/bxteam/ndailyrewards/manager/UserManager.java
index eb073ea..16d3396 100644
--- a/src/main/java/gq/bxteam/ndailyrewards/manager/UserManager.java
+++ b/src/main/java/gq/bxteam/ndailyrewards/manager/UserManager.java
@@ -56,7 +56,7 @@ public void autosave() {
         this.save.clear();
         for (final DUser cu : this.getUsers()) {
             this.plugin.getData().save(cu);
-            this.users.put(cu.getUUID(), cu);
+            this.users.remove(cu.getUUID());
         }
     }
 
@@ -113,7 +113,7 @@ public void onJoin(final PlayerJoinEvent e) {
         if (Config.opt_auto_is && (!Config.opt_auto_have || (Config.opt_auto_have && user.hasActiveReward()))) {
             new BukkitRunnable() {
                 public void run() {
-                    Config.rewards_gui.open(p);
+                    if (p.hasPermission("ndailyrewards.openonjoin")) Config.rewards_gui.open(p);
                 }
             }.runTaskLater(this.plugin, 10L);
         }
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 54f86a4..fe74d87 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -14,7 +14,7 @@ commands:
 permissions:
   ndailyrewards.user:
     description: Allows players to use non-admin commands.
-    default: true
+    default: op
   ndailyrewards.admin:
     description: Allows to use admin commands.
     default: op
\ No newline at end of file