diff --git a/public.php b/public.php
index 0d110a66..19cb3aa7 100755
--- a/public.php
+++ b/public.php
@@ -2011,7 +2011,7 @@ $installersData = json_decode($config['installersDataWhatsApp'] ?? '{"instalador
             <section id="section-installer-jobs" class="section-view">
                 <div class="card">
                     <div style="margin-bottom: 1.5rem;">
-                        <h2 style="margin: 0; display: flex; align-items: center; gap: 10px;">
+                        <h2 id="jobsSectionTitle" style="margin: 0; display: flex; align-items: center; gap: 10px;">
                             📋 Tareas e Instalaciones Activas por Técnico
                         </h2>
                         <p style="color: var(--text-muted); margin: 5px 0 0 0;">Selecciona un técnico instalador para consultar sus tareas "En curso" y reenviar notificaciones por WhatsApp</p>
@@ -2746,52 +2746,48 @@ $installersData = json_decode($config['installersDataWhatsApp'] ?? '{"instalador
             const tableWrapper = document.getElementById('jobsTableWrapper');
             const noResults = document.getElementById('jobsNoResults');
 
-            title.innerHTML = `📋 Tareas Activas: <strong>${installerName}</strong>`;
-            emptyState.style.display = 'none';
-            loading.style.display = 'block';
-            tableWrapper.style.display = 'none';
-            noResults.style.display = 'none';
-
-            // Scroll suave a la sección de jobs
-            title.scrollIntoView({
-                behavior: 'smooth',
-                block: 'start'
-            });
+            if (title) title.innerHTML = `📋 Tareas Activas: <strong>${escapeHtml(installerName)}</strong>`;
+            if (emptyState) emptyState.style.display = 'none';
+            if (loading) loading.style.display = 'block';
+            if (tableWrapper) tableWrapper.style.display = 'none';
+            if (noResults) noResults.style.display = 'none';
 
             try {
                 const resp = await fetch(`?action=get_installer_jobs&installerId=${installerId}`);
                 const jobs = await resp.json();
-                loading.style.display = 'none';
+                if (loading) loading.style.display = 'none';
 
-                if (!jobs.length) {
-                    noResults.style.display = 'block';
+                if (!Array.isArray(jobs) || !jobs.length) {
+                    if (noResults) noResults.style.display = 'block';
                     return;
                 }
 
                 const tbody = document.querySelector('#installerJobsTable tbody');
-                tbody.innerHTML = jobs.map(job => {
-                    const dateFormatted = job.date ? new Date(job.date).toLocaleDateString('es-MX', {
-                        day: '2-digit',
-                        month: '2-digit',
-                        year: 'numeric'
-                    }) : 'S/F';
-                    const titleClean = job.title.replace('[NOTIFICACION-PENDIENTE]', '').replace('[CLIENTE-SIN-WHATSAPP]', '').trim();
-                    return `<tr>
-                        <td><strong><a href="${store.publicUrl}/scheduling/job/${job.id}" target="_blank" style="color: var(--primary); text-decoration: underline;">#${job.id}</a></strong></td>
-                        <td>[${job.clientId}] ${job.clientName}</td>
-                        <td>${dateFormatted}</td>
-                        <td style="max-width:200px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;" title="${job.description}">${titleClean || job.description || 'Sin descripción'}</td>
-                        <td>
-                            <button class="btn btn-primary" style="padding:6px 14px; font-size:0.85em;" onclick="resendJobNotification(${job.id}, this)">
-                                📨 Reenviar
-                            </button>
-                        </td>
-                    </tr>`;
-                }).join('');
-                tableWrapper.style.display = 'block';
+                if (tbody) {
+                    tbody.innerHTML = jobs.map(job => {
+                        const dateFormatted = job.date ? new Date(job.date).toLocaleDateString('es-MX', {
+                            day: '2-digit',
+                            month: '2-digit',
+                            year: 'numeric'
+                        }) : 'S/F';
+                        const titleClean = String(job.title || '').replace('[NOTIFICACION-PENDIENTE]', '').replace('[CLIENTE-SIN-WHATSAPP]', '').trim();
+                        return `<tr>
+                            <td><strong><a href="${store.publicUrl}/scheduling/job/${job.id}" target="_blank" style="color: var(--primary); text-decoration: underline;">#${job.id}</a></strong></td>
+                            <td>[${job.clientId || '-'}] ${escapeHtml(job.clientName)}</td>
+                            <td>${dateFormatted}</td>
+                            <td style="max-width:200px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;" title="${escapeHtml(job.description)}">${escapeHtml(titleClean || job.description || 'Sin descripción')}</td>
+                            <td>
+                                <button class="btn btn-primary" style="padding:6px 14px; font-size:0.85em;" onclick="resendJobNotification(${job.id}, this)">
+                                    📨 Reenviar
+                                </button>
+                            </td>
+                        </tr>`;
+                    }).join('');
+                }
+                if (tableWrapper) tableWrapper.style.display = 'block';
             } catch (e) {
-                loading.style.display = 'none';
-                noResults.style.display = 'block';
+                if (loading) loading.style.display = 'none';
+                if (noResults) noResults.style.display = 'block';
                 console.error('Error loading installer jobs:', e);
             }
         }