fix error when retrieving connected users

application/src/MagicWordBundle/Manager/UserManager.php

@@ -51,9 +51,10 @@ class UserManager
             $data = unserialize($data);
 
             // If this is a session belonging to an anonymous user, do nothing
-            if (!array_key_exists('_security_main', $data)) {
+            if (!is_array($data) || !array_key_exists('_security_main', $data)) {
                 continue;
             }
+
             // Grab security data
             $data = $data['_security_main'];
             $data = unserialize($data);

application/src/MagicWordBundle/Resources/views/Default/home.html.twig

@@ -53,9 +53,9 @@
     <div class="col-12">
       <div class="alert alert-light" role="alert">
         {{"connected"|trans}}: &nbsp;
-        {% for user in get_connected(500) %}
-            {{ pmacros.playerPicAndName(user) }} &nbsp;
-        {% endfor %}
+          {% for user in get_connected(500) %}
+              {{ pmacros.playerPicAndName(user) }} &nbsp;
+          {% endfor %}
       </div>
     </div>