diff --git a/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js b/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
index 77bf52e..2a948c2 100644
--- a/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
+++ b/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
@@ -836,7 +836,7 @@ const LocalizationUtils = {
       }
     }
 
-    if (window.ApiClient && STATE.jellyfinData?.accessToken) {
+    if (window.ApiClient && STATE.jellyfinData && STATE.jellyfinData.accessToken) {
       try {
         const userId = window.ApiClient.getCurrentUserId();
         if (userId) {
@@ -846,7 +846,7 @@ const LocalizationUtils = {
           });
           if (userResponse.ok) {
             const userData = await userResponse.json();
-            if (userData.Configuration?.AudioLanguagePreference) {
+            if (userData.Configuration && userData.Configuration.AudioLanguagePreference) {
               locale = userData.Configuration.AudioLanguagePreference.toLowerCase();
             }
           }
@@ -856,7 +856,7 @@ const LocalizationUtils = {
       }
     }
 
-    if (!locale && window.ApiClient && STATE.jellyfinData?.accessToken) {
+    if (!locale && window.ApiClient && (STATE.jellyfinData && STATE.jellyfinData.accessToken)) {
       try {
         const configUrl = window.ApiClient.getUrl('System/Configuration');
         const configResponse = await fetch(configUrl, {
@@ -1031,7 +1031,7 @@ const LocalizationUtils = {
    */
   getLocalizedString(key, fallback, ...args) {
     const locale = this.cachedLocale || 'en-us';
-    let translated = this.translations[locale]?.[key] || fallback;
+    let translated = (this.translations[locale] && this.translations[locale][key]) || fallback;
 
     if (args.length > 0) {
       for (let i = 0; i < args.length; i++) {
@@ -1776,9 +1776,12 @@ const SlideCreator = {
       }
 
       const isLowPower = isLowPowerDevice();
+      const isIOSApp = /iPhone|iPad|iPod/i.test(navigator.userAgent);
+      const limitVideos = isLowPower || isIOSApp;
       const itemIndex = STATE.slideshow.itemIds ? STATE.slideshow.itemIds.indexOf(itemId) : -1;
       const isActiveSlide = itemIndex !== -1 && itemIndex === STATE.slideshow.currentSlideIndex;
-      const shouldCreateVideo = !isLowPower || isActiveSlide;
+      // Limit YouTube iframe bulk creation on low power devices OR iOS (which kills the WebProcess on OOM)
+      const shouldCreateVideo = !limitVideos || isActiveSlide;
 
       if (isYoutube && videoId && shouldCreateVideo) {
         isVideo = true;
@@ -2804,7 +2807,7 @@ const SlideshowManager = {
 
     if (currentItemId) {
       const currentSlide = document.querySelector(`.slide[data-item-id="${currentItemId}"]`);
-      const video = currentSlide?.querySelector('video');
+      const video = currentSlide ? currentSlide.querySelector('video') : null;
 
       if (video) {
         video.muted = STATE.slideshow.isMuted;
@@ -2964,7 +2967,7 @@ const SlideshowManager = {
     if (!currentSlide) return;
 
     // YouTube player: just resume, don't reload
-    const ytPlayer = STATE.slideshow.videoPlayers?.[currentItemId];
+    const ytPlayer = (STATE.slideshow.videoPlayers && STATE.slideshow.videoPlayers[currentItemId]) ? STATE.slideshow.videoPlayers[currentItemId] : undefined;
     if (ytPlayer && typeof ytPlayer.playVideo === 'function') {
       if (STATE.slideshow.isMuted) {
         if (typeof ytPlayer.mute === 'function') ytPlayer.mute();