diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 7eaf88b..32da4bb 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -74,6 +74,6 @@ model BookingSeat {
 model SystemSetting {
   id    Int    @id @default(autoincrement())
   key   String @unique
-  value String @db.Text
+  value String @db.LongText
 }
 
diff --git a/src/app/api/admin/settings/route.ts b/src/app/api/admin/settings/route.ts
index e79972a..7d34c9d 100644
--- a/src/app/api/admin/settings/route.ts
+++ b/src/app/api/admin/settings/route.ts
@@ -3,9 +3,6 @@ import { prisma } from '@/lib/db';
 import { requireAdmin } from '@/lib/auth';
 import { getSettings } from '@/lib/settings';
 
-import { promises as fs } from 'fs';
-import path from 'path';
-
 export async function GET() {
   try {
     await requireAdmin();
@@ -61,22 +58,15 @@ export async function PUT(request: Request) {
       });
     }
 
-    // Handle logo file upload
+    // Handle logo file upload (Convert to base64 Data URL to support Docker persistence and HTTPS domains)
     const logoFile = formData.get('logoFile') as File | null;
     if (logoFile && logoFile.size > 0) {
       const bytes = await logoFile.arrayBuffer();
       const buffer = Buffer.from(bytes);
-      
-      const uploadDir = path.join(process.cwd(), 'public', 'uploads');
-      // Create folder recursively if it doesn't exist
-      await fs.mkdir(uploadDir, { recursive: true });
-      
-      const filename = `logo-${Date.now()}${path.extname(logoFile.name)}`;
-      const filePath = path.join(uploadDir, filename);
-      
-      await fs.writeFile(filePath, buffer);
-      
-      const logoUrl = `/uploads/${filename}`;
+      const base64Image = buffer.toString('base64');
+      const mimeType = logoFile.type || 'image/png';
+      const logoUrl = `data:${mimeType};base64,${base64Image}`;
+
       await prisma.systemSetting.upsert({
         where: { key: 'logoImageUrl' },
         update: { value: logoUrl },