diff --git a/app/views/managements/_user_agent_list.html.erb b/app/views/managements/_user_agent_list.html.erb
index 18ac8a09..e386970c 100644
--- a/app/views/managements/_user_agent_list.html.erb
+++ b/app/views/managements/_user_agent_list.html.erb
@@ -13,13 +13,13 @@
   <tbody>
   <% @user_agents.each do |ua| %>
     <% user = User.find_by_login(ua.key) %>
-    <% user_extension = user.user_extensions %>
-    <% school = user_extension.school %>
+    <% user_extension = user&.user_extensions %>
+    <% school = user_extension&.school %>
     <tr>
       <td><%= ua.id %></td>
       <td class="edu-txt-left"><span><%= link_to ua.key, user_path(ua.key), :target => "_blank" %></span></td>
       <td><%= link_to user.try(:show_real_name), user_path(user), target:'_blank' %></td>
-      <td><%= school.name %></td>
+      <td><%= school&.name %></td>
       <td><%= ua.action_status == 2 ? "代理之后注册" : "--"  %></td>
       <td><%= ua.register_status == 2 ? "代理之后报名" : "--"  %></td>
       <td><%= ua.ip %></td>