diff --git a/server/controllers/serialsExelController.js b/server/controllers/serialsExelController.js
index a1f9555..1e3cff7 100644
--- a/server/controllers/serialsExelController.js
+++ b/server/controllers/serialsExelController.js
@@ -115,7 +115,7 @@ module.exports.checkSerial = [
       else return res404(res, errMsg)
     } catch (e) {
       console.log(e)
-      return res500(res, `there is an error here --- ${e}`)
+      return res404(res,  e)
     }
   }
 ]
diff --git a/server/controllers/userController.js b/server/controllers/userController.js
index 7a5c6fa..9964dac 100644
--- a/server/controllers/userController.js
+++ b/server/controllers/userController.js
@@ -24,6 +24,7 @@ const {
   generateRandomDigits
 } = require('../plugins/controllersHelperFunctions')
 const _faSr = _sr.fa
+
 const transporter = nodemailer.createTransport({
   host: 'smtp.c1.liara.email',
   port: 587,
@@ -36,6 +37,7 @@ const transporter = nodemailer.createTransport({
     rejectUnauthorized: false
   }
 })
+
 /// ///////////////////////////////////////////////////////////////// verify account functions
 function sendConfirmationEmail(userId) {
   return new Promise(async (resolve, reject) => {
diff --git a/server/database.js b/server/database.js
index 0c15dd8..5dc997a 100644
--- a/server/database.js
+++ b/server/database.js
@@ -1,7 +1,7 @@
 /* eslint-disable no-unused-vars */
 const mongoose = require('mongoose')
 // mongodb database connection string. change it as per your needs. here "mydb" is the name of the database. You don't need to create DB from mongodb terminal. mongoose create the database automatically.
-const inHostUrl = 'mongodb://root:KPTt76tImNBBMm4Kor8QA9gB@asan-service:27017/my-app?authSource=admin'
+const inHostUrl = 'mongodb://root:KPTt76tImNBBMm4Kor8QA9gB@asan-service:27017/asanserv_database?authSource=admin'
 const outHostUrl = 'mongodb://root:KPTt76tImNBBMm4Kor8QA9gB@hotaka.liara.cloud:33794/asanserv_database?authSource=admin'
 const init = ()=>{
   try {
diff --git a/server/models/Serials.js b/server/models/Serials.js
new file mode 100644
index 0000000..a06db2d
--- /dev/null
+++ b/server/models/Serials.js
@@ -0,0 +1,12 @@
+const mongoose = require('mongoose')
+
+const SerialSchema = mongoose.Schema({
+
+  code:String,
+  model:String,
+  message:String
+
+})
+
+
+module.exports = mongoose.model('Serial', SerialSchema)
diff --git a/static/uploads/serials/1/code-guaranty-18-7-1403-site.xlsx b/static/uploads/serials/1/code-guaranty-18-7-1403-site.xlsx
new file mode 100644
index 0000000..43e87fc
Binary files /dev/null and b/static/uploads/serials/1/code-guaranty-18-7-1403-site.xlsx differ