diff --git a/CHANGELOG.md b/CHANGELOG.md
index d871ca16..75a5a62f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 All notable changes to this project will be documented in this file. See [commit-and-tag-version](https://github.com/absolute-version/commit-and-tag-version) for commit guidelines.
 
+## [1.6.4](https://wibugit.wibudev.com/wibu/hipmi/compare/v1.6.3...v1.6.4) (2026-03-03)
+
 ## [1.6.3](https://wibugit.wibudev.com/wibu/hipmi/compare/v1.6.2...v1.6.3) (2026-03-03)
 
 ## [1.6.2](https://wibugit.wibudev.com/wibu/hipmi/compare/v1.6.1...v1.6.2) (2026-02-25)
diff --git a/package.json b/package.json
index f7fb898b..548674ec 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hipmi",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "private": true,
   "prisma": {
     "seed": "bun prisma/seed.ts"
diff --git a/scripts/postbuild.js b/scripts/postbuild.js
index adb56ed0..41b26d28 100644
--- a/scripts/postbuild.js
+++ b/scripts/postbuild.js
@@ -38,4 +38,27 @@ if (fs.existsSync(prismaClientSrc)) {
   console.warn('⚠ @prisma/client not found, skipping...');
 }
 
+// Copy .env file jika ada (untuk production)
+const envSrc = path.join(__dirname, '../.env');
+const envDest = path.join(standaloneDir, '.env');
+if (fs.existsSync(envSrc)) {
+  fs.copyFileSync(envSrc, envDest);
+  console.log('✓ .env file copied to standalone output');
+} else {
+  console.warn('⚠ .env file not found, skipping...');
+  console.warn('  Pastikan DATABASE_URL di-set di system environment server!');
+}
+
+// Copy .env-local file jika ada (opsional)
+const envLocalSrc = path.join(__dirname, '../.env-local');
+const envLocalDest = path.join(standaloneDir, '.env-local');
+if (fs.existsSync(envLocalSrc)) {
+  fs.copyFileSync(envLocalSrc, envLocalDest);
+  console.log('✓ .env-local file copied to standalone output');
+}
+
 console.log('✅ Postbuild script completed!');
+console.log('');
+console.log('📋 Penting untuk Production:');
+console.log('   - Pastikan DATABASE_URL tersedia di environment server, ATAU');
+console.log('   - File .env sudah ter-copy ke /app/.env di server');
diff --git a/src/lib/prisma.ts b/src/lib/prisma.ts
index ac62c007..47db3c82 100644
--- a/src/lib/prisma.ts
+++ b/src/lib/prisma.ts
@@ -8,6 +8,24 @@ declare global {
 
 let prisma: PrismaClient;
 
+// Validasi DATABASE_URL sebelum inisialisasi
+if (!process.env.DATABASE_URL) {
+  console.error('❌ ERROR: DATABASE_URL tidak ditemukan di environment variables!');
+  console.error('');
+  console.error('Current working directory:', process.cwd());
+  console.error('Available environment variables:', Object.keys(process.env).sort().join(', '));
+  console.error('');
+  console.error('Solusi:');
+  console.error('  1. Pastikan file .env ada dan berisi DATABASE_URL, ATAU');
+  console.error('  2. Set DATABASE_URL di system environment:');
+  console.error('     export DATABASE_URL="postgresql://user:pass@host:port/dbname"');
+  console.error('  3. Jika menggunakan systemd service, tambahkan di file service:');
+  console.error('     [Service]');
+  console.error('     Environment=DATABASE_URL=postgresql://...');
+  console.error('');
+  throw new Error('DATABASE_URL is required but not found in environment variables');
+}
+
 if (process.env.NODE_ENV === "production") {
   prisma = new PrismaClient({
     // Reduce logging in production to improve performance