diff --git a/app/(private)/AgregarTiempo/Addtime.tsx b/app/(private)/AgregarTiempo/Addtime.tsx
index 70f4b77..4cc302c 100644
--- a/app/(private)/AgregarTiempo/Addtime.tsx
+++ b/app/(private)/AgregarTiempo/Addtime.tsx
@@ -46,7 +46,7 @@ export default function AddTime({
   const maxFecha = new Date(year, month, today).toISOString().split("T")[0];
 
   const handleSaveReceipt = async () => {
-    if (!numAcount) {
+    if (numAcount == null)  {
 
       Swal.fire({
         title: "Busca de nuevo al estudiante!",
diff --git a/app/Components/Impressions/impressions.tsx b/app/Components/Impressions/impressions.tsx
index f41190d..7911ef4 100644
--- a/app/Components/Impressions/impressions.tsx
+++ b/app/Components/Impressions/impressions.tsx
@@ -21,7 +21,6 @@ function Impressions({ costs, numAcount, id_servicio }: ImpressionsProps) {
   const [cost, setCost] = useState(String(costs[0].value));
 
   const router = useRouter();
-
   const handleLogout = () => {
     Cookies.remove("token");
     Cookies.remove("session");
@@ -29,7 +28,7 @@ function Impressions({ costs, numAcount, id_servicio }: ImpressionsProps) {
   };
 
   const handlePayment = async () => {
-    if (!numAcount) {
+    if (numAcount == null) {
 
       Swal.fire({
         title: "busca de nuevo al estudiante!",
diff --git a/app/Components/Receipt/Inscripcion.tsx b/app/Components/Receipt/Inscripcion.tsx
index c7a0f67..6221a31 100644
--- a/app/Components/Receipt/Inscripcion.tsx
+++ b/app/Components/Receipt/Inscripcion.tsx
@@ -50,7 +50,7 @@ export default function Inscripcion({
   //restrict this month//
 
   const handleSaveReceipt = async () => {
-    if (!numAcount) {
+    if (numAcount == null) {
 
       Swal.fire({
         title: "busca de nuevo al estudiante!",
@@ -143,7 +143,7 @@ export default function Inscripcion({
   };
 
   const handleInscripcionSinPago = async () => {
-    if (!numAcount) {
+    if (numAcount == null) {
 
       Swal.fire({
         title: "busca de nuevo al estudiante!",
diff --git a/app/Components/Receipt/Receipt.tsx b/app/Components/Receipt/Receipt.tsx
index 897dcfe..24db703 100644
--- a/app/Components/Receipt/Receipt.tsx
+++ b/app/Components/Receipt/Receipt.tsx
@@ -31,7 +31,7 @@ export default function Receipt({ numAcount }: ReceiptsProps) {
   //restrict this month//
 
   const handleSaveReceipt = async () => {
-    if (!numAcount) {
+    if (numAcount == null) {
 
       Swal.fire({
         title: "busca de nuevo al estudiante!",