diff --git a/payment_headend/js/customAlert.js b/payment_headend/js/customAlert.js
index 136242d..28c459c 100644
--- a/payment_headend/js/customAlert.js
+++ b/payment_headend/js/customAlert.js
@@ -1,6 +1,6 @@
 function showCustomAlert(message) {
     const alertBox = document.getElementById('customAlert');
-    alertBox.innerText = message;
+    alertBox.innerHTML = message;
     alertBox.style.display = 'block';
     alertBox.style.opacity = '1';
 
diff --git a/payment_headend/js/index.js b/payment_headend/js/index.js
index ecd825f..399cb2b 100644
--- a/payment_headend/js/index.js
+++ b/payment_headend/js/index.js
@@ -68,6 +68,7 @@ function handleMultipleAddresses(walletAddresses) {
     openAddressModal();
 }
 
+let paymentInterval;
 function openPaymentModal(orderId, amount, orderCreateTimestamp, orderExpirationTime) {
     document.getElementById('paymentModal').style.display = 'flex';
 
@@ -89,18 +90,25 @@ function openPaymentModal(orderId, amount, orderCreateTimestamp, orderExpiration
 
         // 如果时间到了，停止更新
         if (remainingTime <= 0) {
-            clearInterval(interval);
+            if (paymentInterval) {
+                clearInterval(paymentInterval);
+                paymentInterval = null;
+            }
             orderInfoElement.innerHTML = `<p style="color: red">Order ${orderId} has expired, please place a new order.</p>`;
         }
     };
 
     // 开始倒计时
-    const interval = setInterval(updateRemainingTime, 1000);
+    paymentInterval = setInterval(updateRemainingTime, 1000);
     updateRemainingTime(); // 立即更新一次
 }
 
 
 function closePaymentModal() {
+    if (paymentInterval) {
+        clearInterval(paymentInterval);
+        paymentInterval = null;
+    }
     document.getElementById('paymentModal').style.display = 'none';
 }
 
@@ -240,19 +248,35 @@ function finishOrder() {
 }
 
 function handleQuery() {
+
     const name = document.getElementById('nickname').value.trim();
     const phone = document.getElementById('phone').value.trim();
     const email = document.getElementById('email').value.trim();
     const walletAddress = document.getElementById('wallet').value.trim();
 
-    const queryParams = {
-        name: name,
-        phone: phone,
-        email: email,
-        wallet_address: walletAddress,
-    };
-    sessionStorage.setItem('queryParams', JSON.stringify(queryParams));
-    window.location.href = '/orderDetails.html';
+// Check if any field is empty
+    if (!name) {
+        openAlertModal("Please enter your game nickname.");
+        document.getElementById('nickname').focus(); // Focus on the name field
+    } else if (!phone) {
+        openAlertModal("Please enter your phone number.");
+        document.getElementById('phone').focus(); // Focus on the phone field
+    } else if (!email) {
+        openAlertModal("Please enter your email.");
+        document.getElementById('email').focus(); // Focus on the email field
+    } else if (!walletAddress) {
+        openAlertModal("Please enter your wallet address.");
+        document.getElementById('wallet').focus(); // Focus on the wallet field
+    } else {
+        const queryParams = {
+            name: name,
+            phone: phone,
+            email: email,
+            wallet_address: walletAddress,
+        };
+        sessionStorage.setItem('queryParams', JSON.stringify(queryParams));
+        window.location.href = '/orderDetails.html';
+    }
 }