diff --git a/frontend/js/app/nginx/access/list/item.ejs b/frontend/js/app/nginx/access/list/item.ejs
index 2ee37a5..fe043c9 100644
--- a/frontend/js/app/nginx/access/list/item.ejs
+++ b/frontend/js/app/nginx/access/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>
diff --git a/frontend/js/app/nginx/certificates/list/item.ejs b/frontend/js/app/nginx/certificates/list/item.ejs
index 20d6f23..9a0d6b2 100644
--- a/frontend/js/app/nginx/certificates/list/item.ejs
+++ b/frontend/js/app/nginx/certificates/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>
diff --git a/frontend/js/app/nginx/dead/list/item.ejs b/frontend/js/app/nginx/dead/list/item.ejs
index d447bd1..dede3b6 100644
--- a/frontend/js/app/nginx/dead/list/item.ejs
+++ b/frontend/js/app/nginx/dead/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>
diff --git a/frontend/js/app/nginx/proxy/list/item.ejs b/frontend/js/app/nginx/proxy/list/item.ejs
index a593680..3eeaa6d 100644
--- a/frontend/js/app/nginx/proxy/list/item.ejs
+++ b/frontend/js/app/nginx/proxy/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>
diff --git a/frontend/js/app/nginx/redirection/list/item.ejs b/frontend/js/app/nginx/redirection/list/item.ejs
index 4f25d97..dff186f 100644
--- a/frontend/js/app/nginx/redirection/list/item.ejs
+++ b/frontend/js/app/nginx/redirection/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>
diff --git a/frontend/js/app/nginx/stream/list/item.ejs b/frontend/js/app/nginx/stream/list/item.ejs
index a8ff83d..2b4cb62 100644
--- a/frontend/js/app/nginx/stream/list/item.ejs
+++ b/frontend/js/app/nginx/stream/list/item.ejs
@@ -1,6 +1,6 @@
 <td class="text-center">
-    <div class="avatar d-block" style="background-image: url(<%- owner.avatar || '/images/default-avatar.jpg' %>)" title="Owned by <%- owner.name %>">
-        <span class="avatar-status <%- owner.is_disabled ? 'bg-red' : 'bg-green' %>"></span>
+    <div class="avatar d-block" style="background-image: url(<%- (owner && owner.avatar) || '/images/default-avatar.jpg' %>)" title="Owned by <%- (owner && owner.name) || 'a deleted user' %>">
+        <span class="avatar-status <%- owner && !owner.is_disabled ? 'bg-green' : 'bg-red' %>"></span>
     </div>
 </td>
 <td>