Fix: Change 'amount' to 'price' to match database schema - Database uses 'price' column, not 'amount' - Update all queries in DailySummaryService, HourlySummaryService - Update RetribusiWriteService (SELECT, INSERT, UPDATE) - Update Validator to use 'price' field - Update check_database.php and TROUBLESHOOTING.md

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;
 ```