diff --git a/public_html/index.html b/public_html/index.html
index cdc8553..a54b84a 100644
--- a/public_html/index.html
+++ b/public_html/index.html
@@ -1507,14 +1507,15 @@ async function loadNews() {
 
 // ── TABS ──────────────────────────────────────────────────────────────
 function switchTab(name) {
+  if (name === 'sites') { openSitesModal(); return; }
   document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
   document.querySelectorAll('.tab-pane').forEach(p => p.classList.remove('active'));
   event.target.classList.add('active');
-  document.getElementById('tab-'+name).classList.add('active');
+  const pane = document.getElementById('tab-'+name);
+  if (pane) pane.classList.add('active');
   if (name === 'news') loadNews();
   if (name === 'agents') loadAgents();
   if (name === 'alerts') loadAlerts();
-  if (name === 'sites') { openSitesModal(); return; }
 }
 
 // ── CHAT ──────────────────────────────────────────────────────────────