<ul><li>website/inc/getsite.php: Fixed $strMetaContent typo (was $strMetaContent, should be $strMetaContent3); initialized $strOGMetaTitle3, $strOGMetaDescription3 to empty string before commented-out blocks; added ?? '' guards for conditional meta vars</li><li>website/inc/getsitemenus.php: Initialized $strOGMetaImage and $strOGMetaVideo to '' before conditional if-blocks that only set them when content exists</li><li>platform/settings/pagedata.php: Created missing settings.php redirect file (index page was fatal)</li><li>platform/settings/users/inc/classifications.php: Added ?? '' guards to $_GET['active'], $_GET['action'], $_GET['classification_id']</li><li>platform/settings/users/inc/contacts.php: Fixed wrong gbl_class.php path (controller/ → classes/)</li><li>platform/ticket_system/toolbar.php: Initialized $totaltks, $newtks, $opentks to 0; added ?? '' guards to $_REQUEST['page'] in commented HTML block</li><li>platform/ticket_system/inc/fetch_data.php: Initialized $tickets = [] and added ?? guards on all array accesses in commented HTML block</li><li>platform/ticket_system/help/add.php: Initialized $nonSystemModules, $systemModules; fixed $_GET['tour'] key; added $page_id ?? '' guard</li><li>platform/administration/accounts/pages/accounts_list.php: Added ?? '' to $infouser['username'] and $infouser['email'] null access</li><li>platform/administration/templates/pages/modals/template_modals.php: Initialized $allActivedModules and $modules to [] before use</li><li>platform/components/toolbar.php and foot.php: Added ?? '' to all $page_id usages (4 locations in foot.php)</li><li>platform/administration/media/index.php: Fixed wrong template include (dashboard/dashboard_template.php → main.template.php)</li><li>platform/administration/services/pagedata.php: Removed stray `b` character causing Undefined constant fatal</li><li>platform/administration/ai/inc_ai_manager.php: Added ?? '' guards to $_GET['page']</li><li>platform/administration/ai/pages/billing.php: Initialized $hasBilling, $isPayer, $chat_setting, $creditlimit, $alerts, $overall_* vars; added ?? guards to $dns array access and $_GET['host']</li><li>platform/administration/ai/pages/settings_js.php: Added ?? '' guards to $_GET['id']</li><li>platform/administration/media/videos.php: Wrapped missing DB tables (av_url, wwbn_video_tasks, wwbn_instances_modules) in try-catch; fixed undefined $urlshortner2_params</li><li>platform/administration/services/dashboard/dashboard.php: Added ?? '' guard to $_REQUEST['action']</li><li>platform/settings/webapp/functions.php and pwa_visitor_type.php: Added ?? '' guards to $_GET['siteid'] and $domain_name</li><li>platform/settings/instance/instance.php: Added ?: [] fallback to unserialize result; added ?? '' to $SMaffiliateinfo['last_pd_date']</li><li>platform/settings/instance/files/widgets.php and models/ppc|ppp|ppi|pps|ppl.php: Added ?? false guards to $widgets key access</li><li>platform/settings/instance/files/markets.php: Fixed division by zero (added $whole != 0 check)</li><li>platform/settings/onboarding/pages/tour/index.php: Fixed wrong include path for websites.class.php; wrapped with class_exists check</li><li>platform/settings/onboarding/pages/tour/modal.php: Added ?? 0 guard to $file_type</li><li>platform/settings/sesn/index.php: Fixed wrong template include (settings/account_template.php → main.template.php)</li><li>platform/settings/sesn/social_connect_main.php: Added ?? null guard to $_SESSION['acctinstanceid']</li><li>platform/settings/websites/php_functions.php and settings.php: Added ?? '' guards to $_GET['siteid'] and $_REQUEST['siteid']</li><li>platform/settings/chat_support/pages/billing.php: Added ?? null guards to $chat['acct_idkey']; fixed typo 'emai' → 'email' (was causing array-to-string conversion)</li><li>platform/settings/organization/pages/update.php: Initialized $rid_form = '' before conditional block; added ?? '' to all trim($_GET['company']) calls</li></ul>