Enhance payment processing by adding VAT number handling and updating transaction retrieval logic. Refactor user role migration script for improved role assignments and streamline software tool functionality with maintenance mode checks and UI updates.

api/v2/get/payment.php

@@ -49,7 +49,7 @@ if (!$transaction) {
 //+++++++++++++++++++++++++++++++++++++++++++++++++++++
 $sql = 'SELECT * FROM transactions_items WHERE txn_id = ? LIMIT 1';
 $stmt = $pdo->prepare($sql);
-$stmt->execute([$payment_id]);
+$stmt->execute([$transaction['id']]);
 $item = $stmt->fetch(PDO::FETCH_ASSOC);
 
 if (!$item) {