<h4>Contact Us Module — Debug Audit & Fixes</h4><ul><li><strong>Fixed:</strong> Enabled error_reporting(E_ALL) in ContactUsController.php.</li><li><strong>Fixed:</strong> Undefined variable warnings across 8 methods — all use <code>extract($request)</code> then immediately access variables like <code>$id</code>, <code>$contactus_id</code>, <code>$category_id</code>, <code>$contactusid_fk</code> without null checks. Added <code>?? null</code> defaults for: updateContactUsPage, updateContactUsInformation, addContactUsCategory, getCategoryTable, getCategoryDataJson, updateContactUsCategory, deleteContactUsCategory.</li><li><strong>Fixed:</strong> <code>file_get_contents()</code> warning on non-existent template file in getPageHTMLJS (line 623) — added <code>file_exists()</code> guard.</li><li><strong>Fixed:</strong> Undefined array keys in send() — <code>$r['email']</code>, <code>$r['subject']</code>, <code>$r['captcha_code']</code>, <code>$r['Name']</code>, <code>$r['Telephone']</code>, <code>$r['Comments']</code> — added null coalescing defaults.</li></ul><p><strong>Files:</strong> controller/contact_us/ContactUsController.php</p><p><strong>Result:</strong> Page loads fully (14,509 lines, 0 errors). All 10 endpoints tested — clean validation responses, 0 PHP warnings.</p>