🔍 Testing Transaction Logic
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Starting transaction test...
Total crypto amount: 0.0264
✅ Transaction started
❌ Transaction rolled back: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'currency_code' in 'WHERE'
❌ Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'currency_code' in 'WHERE'
Stack trace: #0 /home/kakoexchange25/public_html/debug_transaction.php(29): PDO->prepare()
#1 {main}