diff --git a/manage_subscriptions/views.py b/manage_subscriptions/views.py
index 383e465..b943887 100644
--- a/manage_subscriptions/views.py
+++ b/manage_subscriptions/views.py
@@ -353,7 +353,7 @@ class SubscriptionPageView(TemplateView):
         token = request.GET.get("token") or request.session.get("jwt")
         print("token: ", token)
         if token:
-            request.session['jwt'] = token
+            request.session["jwt"] = token
             print("request.session: ", request.session)
             try:
                 # Decode and validate token
@@ -429,14 +429,14 @@ def create_checkout_session(request):
 
     if has_active_principal_subscription(principal_id):
         print("Active principal subscription already exists.")
-        return JsonResponse({"error-message": "Active principal subscription already exists"}, status=400)
+        return JsonResponse(
+            {"error": "Active principal subscription already exists"}, status=400
+        )
 
     try:
         subscription = Subscription.objects.get(id=subscription_id)
     except Subscription.DoesNotExist:
-        return ApiResponse.error(
-            status=status.HTTP_404_NOT_FOUND, message="Subscription not found."
-        )
+        return JsonResponse({"error": "Subscription not found."}, status=404)
 
     order_id = (
         "order_" + str(timezone.localtime().timestamp()) + str(request.user.email)
diff --git a/templates/stripe_html/index.html b/templates/stripe_html/index.html
index 1914b80..75ff006 100644
--- a/templates/stripe_html/index.html
+++ b/templates/stripe_html/index.html
@@ -548,6 +548,7 @@
                             })
                             .catch((error) => {
                                 console.error("Error:", error);
+                                document.getElementById('error-message').innerText = "Error: " + error.message;
                                 button.disabled = false;
                             });
                     });