diff --git a/app/Http/Controllers/Admin/AdvertisementController.php b/app/Http/Controllers/Admin/AdvertisementController.php
index 2c30434..87b7a94 100644
--- a/app/Http/Controllers/Admin/AdvertisementController.php
+++ b/app/Http/Controllers/Admin/AdvertisementController.php
@@ -76,42 +76,59 @@ class AdvertisementController extends AdminController
             'end_at' => 'nullable|date|after_or_equal:start_at',
         ]);
 
-        $user = auth()->user();
-        $file = $request->file('file');
-        
-        if ($request->type === 'image') {
-            $path = $this->storeAsWebp($file, 'ads');
-        } else {
-            $path = $file->store('ads', 'public');
-        }
+        try {
+            $user = auth()->user();
+            $file = $request->file('file');
+            
+            if ($request->type === 'image') {
+                $path = $this->storeAsWebp($file, 'ads');
+            } else {
+                $path = $file->store('ads', 'public');
+            }
 
-        if ($user->isSystemAdmin()) {
-            $companyId = $request->filled('company_id') ? $request->company_id : null;
-        } else {
-            $companyId = $user->company_id;
-        }
+            if ($user->isSystemAdmin()) {
+                $companyId = $request->filled('company_id') ? $request->company_id : null;
+            } else {
+                $companyId = $user->company_id;
+            }
 
-        $advertisement = Advertisement::create([
-            'company_id' => $companyId,
-            'name' => $request->name,
-            'type' => $request->type,
-            'duration' => (int) $request->duration,
-            'url' => Storage::disk('public')->url($path),
-            'is_active' => true,
-            'start_at' => $request->start_at,
-            'end_at' => $request->end_at,
-        ]);
-
-        if ($request->wantsJson()) {
-            session()->flash('success', __('Advertisement created successfully.'));
-            return response()->json([
-                'success' => true,
-                'message' => __('Advertisement created successfully.'),
-                'data' => $advertisement
+            $advertisement = Advertisement::create([
+                'company_id' => $companyId,
+                'name' => $request->name,
+                'type' => $request->type,
+                'duration' => (int) $request->duration,
+                'url' => Storage::disk('public')->url($path),
+                'is_active' => true,
+                'start_at' => $request->start_at,
+                'end_at' => $request->end_at,
             ]);
-        }
 
-        return redirect()->back()->with('success', __('Advertisement created successfully.'));
+            if ($request->wantsJson()) {
+                return response()->json([
+                    'success' => true,
+                    'message' => __('Advertisement created successfully.'),
+                    'data' => $advertisement
+                ]);
+            }
+
+            return redirect()->back()->with('success', __('Advertisement created successfully.'));
+
+        } catch (\Exception $e) {
+            \Log::error('Advertisement Upload Error: ' . $e->getMessage(), [
+                'user_id' => auth()->id(),
+                'file_name' => $request->file('file')?->getClientOriginalName(),
+                'trace' => $e->getTraceAsString()
+            ]);
+
+            if ($request->wantsJson()) {
+                return response()->json([
+                    'success' => false,
+                    'message' => __('Failed to process advertisement file: ') . $e->getMessage()
+                ], 500);
+            }
+
+            return redirect()->back()->with('error', __('Failed to process advertisement file.'));
+        }
     }
 
     public function update(Request $request, Advertisement $advertisement)
diff --git a/resources/views/admin/ads/index.blade.php b/resources/views/admin/ads/index.blade.php
index cd0c993..ebfdbaa 100644
--- a/resources/views/admin/ads/index.blade.php
+++ b/resources/views/admin/ads/index.blade.php
@@ -1139,30 +1139,39 @@ $baseRoute = 'admin.data-config.advertisements';
                 });
 
                 xhr.addEventListener('load', () => {
+                    let result;
                     try {
-                        const result = JSON.parse(xhr.responseText);
-                        if (xhr.status >= 200 && xhr.status < 300 && result.success) {
-                            // 進度跳到 100%
-                            if (bar) bar.style.width = '100%';
-                            this.uploadProgress = 100;
-                            this.isAdModalOpen = false;
-                            // 延遲 300ms 讓進度條動畫完成後再重整
-                            setTimeout(() => {
-                                location.reload();
-                            }, 300);
-                        } else {
-                            window.showToast?.(result.message || 'Error', 'error');
-                            this.isSubmitting = false;
-                            this.uploadProgress = 0;
-                            if (bar) {
-                                bar.style.width = '0%';
-                                bar.style.opacity = '0';
-                                bar.classList.remove('loading');
-                            }
-                        }
+                        result = JSON.parse(xhr.responseText);
                     } catch (e) {
-                        console.error('Failed to parse response', e);
-                        window.showToast?.('System Error', 'error');
+                        console.error('Failed to parse response', e, xhr.responseText);
+                        let errorMsg = 'System Error';
+                        if (xhr.status === 413) {
+                            errorMsg = '{{ __("File is too large for the server configuration") }} (Nginx 413)';
+                        } else if (xhr.status >= 500) {
+                            errorMsg = '{{ __("Server Internal Error") }} (500)';
+                        }
+                        window.showToast?.(errorMsg, 'error');
+                        this.isSubmitting = false;
+                        this.uploadProgress = 0;
+                        if (bar) {
+                            bar.style.width = '0%';
+                            bar.style.opacity = '0';
+                            bar.classList.remove('loading');
+                        }
+                        return;
+                    }
+
+                    if (xhr.status >= 200 && xhr.status < 300 && result.success) {
+                        // 進度跳到 100%
+                        if (bar) bar.style.width = '100%';
+                        this.uploadProgress = 100;
+                        this.isAdModalOpen = false;
+                        // 延遲 300ms 讓進度條動畫完成後再重整
+                        setTimeout(() => {
+                            location.reload();
+                        }, 300);
+                    } else {
+                        window.showToast?.(result.message || 'Error', 'error');
                         this.isSubmitting = false;
                         this.uploadProgress = 0;
                         if (bar) {