diff --git a/.gitignore b/.gitignore
index af68f56..4cd5923 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,7 +31,10 @@ composer.phar
 composer.lock
 
 # Backup
-*.sql
 *.bak
 backup/
 
+# SQL files (exclude backup, but allow migrations)
+*.sql
+!migrations/*.sql
+
diff --git a/DEPLOYMENT.md b/DEPLOYMENT.md
index 04d35ed..3a0a307 100644
--- a/DEPLOYMENT.md
+++ b/DEPLOYMENT.md
@@ -77,36 +77,37 @@ composer dump-autoload --optimize
    - Memory limit: 256M (minimum)
 
 3. **Nginx Configuration** (PENTING untuk fix 404):
-   
+
    Masuk ke: **Website -> api.btekno.cloud -> Settings -> Configuration**
-   
+
    Ganti isi configuration dengan:
+
    ```nginx
    server {
        listen 80;
        listen 443 ssl http2;
        server_name api.btekno.cloud;
-       
+
        # Document Root - HARUS ke folder public/
        root /www/wwwroot/api.btekno.cloud/api/public;
        index index.php index.html;
-       
+
        # Logs
        access_log /www/wwwlogs/api.btekno.cloud.log;
        error_log /www/wwwlogs/api.btekno.cloud.error.log;
-       
+
        # Disable access to hidden files
        location ~ /\. {
            deny all;
            access_log off;
            log_not_found off;
        }
-       
+
        # Main location block - routing untuk Slim Framework
        location / {
            try_files $uri $uri/ /index.php?$query_string;
        }
-       
+
        # PHP-FPM configuration
        location ~ \.php$ {
            try_files $uri =404;
@@ -115,29 +116,30 @@ composer dump-autoload --optimize
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include fastcgi_params;
-           
+
            # Disable buffering for SSE
            fastcgi_buffering off;
        }
-       
+
        # Disable PHP execution in uploads
        location ~* /uploads/.*\.php$ {
            deny all;
        }
    }
    ```
-   
+
    **Cek PHP socket path:**
+
    ```bash
    # Cek PHP version yang digunakan
    php -v
-   
+
    # Cek socket path (biasanya di /tmp/php-cgi-XX.sock)
    ls -la /tmp/php-cgi-*.sock
    ```
-   
+
    Setelah edit, klik **Save** dan **Reload** nginx.
-   
+
    **Atau copy file `nginx.conf.example` dan sesuaikan path PHP socket.**
 
 ## 🔧 Environment Configuration
diff --git a/TROUBLESHOOTING.md b/TROUBLESHOOTING.md
index 0d3b410..5d10138 100644
--- a/TROUBLESHOOTING.md
+++ b/TROUBLESHOOTING.md
@@ -2,10 +2,14 @@
 
 ## Error: "Unknown column 't.amount' in 'SELECT'"
 
-### Kemungkinan Penyebab:
+### Root Cause:
+**Kolom di database adalah `price`, bukan `amount`!**
+
+Database production menggunakan kolom `price` di tabel `tariffs`, tapi code menggunakan `amount`. Ini menyebabkan mismatch.
+
+### Kemungkinan Penyebab Lain:
 1. **OPcache belum di-clear** - PHP masih menggunakan file lama
-2. **Struktur database berbeda** - Kolom `amount` mungkin tidak ada atau nama berbeda
-3. **File belum ter-update** - Meskipun sudah `git pull`, file mungkin belum benar-benar ter-update
+2. **File belum ter-update** - Meskipun sudah `git pull`, file mungkin belum benar-benar ter-update
 
 ---
 
@@ -65,7 +69,7 @@ SELECT
     e.gate_code,
     e.category,
     COUNT(*) as total_count,
-    COALESCE(t.amount, 0) as tariff_amount
+    COALESCE(t.price, 0) as tariff_amount
 FROM entry_events e
 INNER JOIN locations l ON e.location_code = l.code AND l.is_active = 1
 INNER JOIN gates g ON e.location_code = g.location_code 
@@ -80,7 +84,7 @@ GROUP BY
     e.location_code,
     e.gate_code,
     e.category,
-    COALESCE(t.amount, 0)
+    COALESCE(t.price, 0)
 LIMIT 5;
 ```
 
diff --git a/bin/check_database.php b/bin/check_database.php
index 62c7eaa..7a4631b 100644
--- a/bin/check_database.php
+++ b/bin/check_database.php
@@ -92,22 +92,22 @@ try {
             e.gate_code,
             e.category,
             COUNT(*) as total_count,
-            COALESCE(t.amount, 0) as tariff_amount
-        FROM entry_events e
-        INNER JOIN locations l ON e.location_code = l.code AND l.is_active = 1
-        INNER JOIN gates g ON e.location_code = g.location_code 
-            AND e.gate_code = g.gate_code 
-            AND g.is_active = 1
-        LEFT JOIN tariffs t ON e.location_code = t.location_code
-            AND e.gate_code = t.gate_code
-            AND e.category = t.category
-        WHERE DATE(e.event_time) = CURDATE()
-        GROUP BY 
-            DATE(e.event_time),
-            e.location_code,
-            e.gate_code,
-            e.category,
-            COALESCE(t.amount, 0)
+            COALESCE(t.price, 0) as tariff_amount
+                FROM entry_events e
+                INNER JOIN locations l ON e.location_code = l.code AND l.is_active = 1
+                INNER JOIN gates g ON e.location_code = g.location_code 
+                    AND e.gate_code = g.gate_code 
+                    AND g.is_active = 1
+                LEFT JOIN tariffs t ON e.location_code = t.location_code
+                    AND e.gate_code = t.gate_code
+                    AND e.category = t.category
+                WHERE DATE(e.event_time) = CURDATE()
+                GROUP BY 
+                    DATE(e.event_time),
+                    e.location_code,
+                    e.gate_code,
+                    e.category,
+                    COALESCE(t.price, 0)
         LIMIT 1
     ";
     
diff --git a/src/Modules/Retribusi/Frontend/RetribusiWriteService.php b/src/Modules/Retribusi/Frontend/RetribusiWriteService.php
index 488cdb5..e31dd32 100644
--- a/src/Modules/Retribusi/Frontend/RetribusiWriteService.php
+++ b/src/Modules/Retribusi/Frontend/RetribusiWriteService.php
@@ -236,7 +236,7 @@ class RetribusiWriteService
     public function getTariff(string $locationCode, string $gateCode, string $category): ?array
     {
         $stmt = $this->db->prepare(
-            'SELECT location_code, gate_code, category, amount 
+            'SELECT location_code, gate_code, category, price 
              FROM tariffs 
              WHERE location_code = ? AND gate_code = ? AND category = ? 
              LIMIT 1'
@@ -256,7 +256,7 @@ class RetribusiWriteService
     public function createTariff(array $data): array
     {
         $stmt = $this->db->prepare(
-            'INSERT INTO tariffs (location_code, gate_code, category, amount) 
+            'INSERT INTO tariffs (location_code, gate_code, category, price) 
              VALUES (?, ?, ?, ?)'
         );
 
@@ -264,7 +264,7 @@ class RetribusiWriteService
             $data['location_code'],
             $data['gate_code'],
             $data['category'],
-            (int) $data['amount']
+            (int) $data['price']
         ]);
 
         return $this->getTariff($data['location_code'], $data['gate_code'], $data['category']);
@@ -285,9 +285,9 @@ class RetribusiWriteService
         $updates = [];
         $params = [];
 
-        if (isset($data['amount'])) {
-            $updates[] = 'amount = ?';
-            $params[] = (int) $data['amount'];
+        if (isset($data['price'])) {
+            $updates[] = 'price = ?';
+            $params[] = (int) $data['price'];
         }
 
         if (empty($updates)) {
diff --git a/src/Modules/Retribusi/Summary/DailySummaryService.php b/src/Modules/Retribusi/Summary/DailySummaryService.php
index 92e0e20..666e762 100644
--- a/src/Modules/Retribusi/Summary/DailySummaryService.php
+++ b/src/Modules/Retribusi/Summary/DailySummaryService.php
@@ -43,7 +43,7 @@ class DailySummaryService
                     e.gate_code,
                     e.category,
                     COUNT(*) as total_count,
-                    COALESCE(t.amount, 0) as tariff_amount
+                    COALESCE(t.price, 0) as tariff_amount
                 FROM entry_events e
                 INNER JOIN locations l ON e.location_code = l.code AND l.is_active = 1
                 INNER JOIN gates g ON e.location_code = g.location_code 
@@ -58,7 +58,7 @@ class DailySummaryService
                     e.location_code,
                     e.gate_code,
                     e.category,
-                    COALESCE(t.amount, 0)
+                    COALESCE(t.price, 0)
             ";
 
             $stmt = $this->db->prepare($sql);
diff --git a/src/Modules/Retribusi/Summary/HourlySummaryService.php b/src/Modules/Retribusi/Summary/HourlySummaryService.php
index cf1d2ed..829fcc7 100644
--- a/src/Modules/Retribusi/Summary/HourlySummaryService.php
+++ b/src/Modules/Retribusi/Summary/HourlySummaryService.php
@@ -45,7 +45,7 @@ class HourlySummaryService
                     e.gate_code,
                     e.category,
                     COUNT(*) as total_count,
-                    COALESCE(t.amount, 0) as tariff_amount
+                    COALESCE(t.price, 0) as tariff_amount
                 FROM entry_events e
                 INNER JOIN locations l ON e.location_code = l.code AND l.is_active = 1
                 INNER JOIN gates g ON e.location_code = g.location_code 
@@ -61,7 +61,7 @@ class HourlySummaryService
                     e.location_code,
                     e.gate_code,
                     e.category,
-                    COALESCE(t.amount, 0)
+                    COALESCE(t.price, 0)
             ";
 
             $stmt = $this->db->prepare($sql);
diff --git a/src/Support/Validator.php b/src/Support/Validator.php
index 37241a5..23b7f2c 100644
--- a/src/Support/Validator.php
+++ b/src/Support/Validator.php
@@ -281,15 +281,15 @@ class Validator
             }
         }
 
-        // Amount: required for POST, optional for update
-        if (isset($data['amount'])) {
-            if (!is_int($data['amount']) && !is_numeric($data['amount'])) {
-                $errors['amount'] = 'Must be an integer';
-            } elseif ((int) $data['amount'] < 0) {
-                $errors['amount'] = 'Must be >= 0';
+        // Price: required for POST, optional for update
+        if (isset($data['price'])) {
+            if (!is_int($data['price']) && !is_numeric($data['price'])) {
+                $errors['price'] = 'Must be an integer';
+            } elseif ((int) $data['price'] < 0) {
+                $errors['price'] = 'Must be >= 0';
             }
         } elseif (!$isUpdate) {
-            $errors['amount'] = 'Field is required';
+            $errors['price'] = 'Field is required';
         }
 
         return $errors;