diff --git a/backend/src/routes/adminFeedback.js b/backend/src/routes/adminFeedback.js
index a8406cc..3cccf7d 100644
--- a/backend/src/routes/adminFeedback.js
+++ b/backend/src/routes/adminFeedback.js
@@ -60,8 +60,8 @@ router.put('/events/:eventId/feedback-settings',
         settings: updatedSettings
       }, eventId, {
         type: 'admin',
-        id: req.user.id,
-        name: req.user.username
+        id: req.admin.id,
+        name: req.admin.username
       });
       
       res.json(updatedSettings);
@@ -167,7 +167,7 @@ router.put('/feedback/:feedbackId/:action',
         return res.status(400).json({ error: 'Invalid action' });
       }
       
-      await feedbackService.moderateFeedback(feedbackId, action, req.user.id);
+      await feedbackService.moderateFeedback(feedbackId, action, req.admin.id);
       
       res.json({ success: true });
     } catch (error) {
@@ -184,7 +184,7 @@ router.delete('/feedback/:feedbackId',
     try {
       const { feedbackId } = req.params;
       
-      await feedbackService.deleteFeedback(feedbackId, req.user.id);
+      await feedbackService.deleteFeedback(feedbackId, req.admin.id);
       
       res.json({ success: true });
     } catch (error) {
diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index 2e31dd3..0d03b3d 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -4,6 +4,10 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Allow larger file uploads (up to 100MB)
+    client_max_body_size 100M;
+    client_body_timeout 300s;
+
     # Gzip compression
     gzip on;
     gzip_vary on;
@@ -49,6 +53,10 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_cache_bypass $http_upgrade;
         proxy_read_timeout 86400;
+        
+        # Allow larger uploads for API endpoints
+        client_max_body_size 100M;
+        client_body_timeout 300s;
     }
 
     # Photo serving proxy
diff --git a/frontend/src/components/admin/FeedbackModerationPanel.tsx b/frontend/src/components/admin/FeedbackModerationPanel.tsx
index 18c15ab..34dbb03 100644
--- a/frontend/src/components/admin/FeedbackModerationPanel.tsx
+++ b/frontend/src/components/admin/FeedbackModerationPanel.tsx
@@ -118,7 +118,12 @@ export const FeedbackModerationPanel: React.FC<FeedbackModerationPanelProps> = (
                           </span>
                           <span className="text-neutral-500">•</span>
                           <span className="text-neutral-500">
-                            {format(parseISO(item.created_at), 'MMM d, h:mm a')}
+                            {format(
+                              typeof item.created_at === 'string' 
+                                ? parseISO(item.created_at) 
+                                : new Date(item.created_at), 
+                              'MMM d, h:mm a'
+                            )}
                           </span>
                         </div>
                         <p className="mt-1 text-sm text-neutral-700">{item.comment}</p>
diff --git a/frontend/src/config/api.ts b/frontend/src/config/api.ts
index 14bd410..65ed3dc 100644
--- a/frontend/src/config/api.ts
+++ b/frontend/src/config/api.ts
@@ -48,10 +48,25 @@ api.interceptors.request.use(
       const galleryMatch = config.url?.match(/gallery\/([^\/]+)/);
       
       if (galleryMatch && galleryMatch[1]) {
-        const gallerySlug = galleryMatch[1];
+        const galleryIdOrSlug = galleryMatch[1];
         // Remove any query parameters from the slug
-        const cleanSlug = gallerySlug.split('?')[0];
-        const token = localStorage.getItem(`gallery_token_${cleanSlug}`);
+        const cleanIdOrSlug = galleryIdOrSlug.split('?')[0];
+        
+        // Check if it's a numeric ID (for upload endpoints)
+        let token = null;
+        if (/^\d+$/.test(cleanIdOrSlug)) {
+          // It's an event ID - try to find the token from current page slug
+          const pathParts = window.location.pathname.split('/');
+          if (pathParts[1] === 'gallery' && pathParts[2]) {
+            const gallerySlug = pathParts[2];
+            const cleanSlug = gallerySlug.split('?')[0];
+            token = localStorage.getItem(`gallery_token_${cleanSlug}`);
+          }
+        } else {
+          // It's a slug - use it directly
+          token = localStorage.getItem(`gallery_token_${cleanIdOrSlug}`);
+        }
+        
         if (token) {
           if (!config.headers) {
             config.headers = {};
diff --git a/frontend/src/i18n/locales/de.json b/frontend/src/i18n/locales/de.json
index b7e75e0..1a47adf 100644
--- a/frontend/src/i18n/locales/de.json
+++ b/frontend/src/i18n/locales/de.json
@@ -134,7 +134,6 @@
     "sortByName": "Nach Name sortieren",
     "sortBySize": "Nach Größe sortieren",
     "allPhotos": "Alle Fotos",
-    "downloadSelected": "Ausgewählte herunterladen",
     "shareGallery": "Galerie teilen",
     "needHelp": "Hilfe benötigt? Kontaktieren Sie uns unter",
     "noPhotosFound": "Keine Fotos gefunden",
diff --git a/frontend/src/pages/admin/EventDetailsPage.tsx b/frontend/src/pages/admin/EventDetailsPage.tsx
index 784299c..ab3c2ba 100644
--- a/frontend/src/pages/admin/EventDetailsPage.tsx
+++ b/frontend/src/pages/admin/EventDetailsPage.tsx
@@ -279,12 +279,38 @@ export const EventDetailsPage: React.FC = () => {
 
   const handleCopyLink = async () => {
     try {
-      await navigator.clipboard.writeText(event.share_link);
+      // Check if share_link exists
+      if (!event.share_link) {
+        toast.error(t('errors.noShareLink', 'No share link available'));
+        return;
+      }
+
+      // Try modern clipboard API first
+      if (navigator.clipboard && window.isSecureContext) {
+        await navigator.clipboard.writeText(event.share_link);
+      } else {
+        // Fallback for non-HTTPS contexts or older browsers
+        const textArea = document.createElement('textarea');
+        textArea.value = event.share_link;
+        textArea.style.position = 'fixed';
+        textArea.style.left = '-999999px';
+        textArea.style.top = '-999999px';
+        document.body.appendChild(textArea);
+        textArea.focus();
+        textArea.select();
+        const successful = document.execCommand('copy');
+        document.body.removeChild(textArea);
+        if (!successful) {
+          throw new Error('Copy failed');
+        }
+      }
+      
       setCopiedLink(true);
       setTimeout(() => setCopiedLink(false), 2000);
       toast.success(t('toast.linkCopied'));
     } catch (err) {
-      toast.error(t('errors.somethingWentWrong'));
+      console.error('Copy failed:', err);
+      toast.error(t('errors.copyFailed', 'Failed to copy link. Please copy manually.'));
     }
   };