diff --git a/index.js b/index.js
index 9ca5c603411ff4530ec075de5453a20b1f502e50..61d8c08c234cdffa3601ad121a0f3b38514ee656 100644
--- a/index.js
+++ b/index.js
@@ -207,6 +207,7 @@ async function buildAggregatedData(data, doctype) {
 }
 
 async function authenticate(login, password, baseUrl, apiAuthKey) {
+  log('info', 'Authenticating ...')
   const authRequest = {
     method: 'post',
     url: baseUrl + '/connect.aspx',
@@ -224,13 +225,12 @@ async function authenticate(login, password, baseUrl, apiAuthKey) {
     const resp = await axios(authRequest)
     if (resp.data.codeRetour === 100) {
       return resp.data
-    } else {
-      const errorMessage = `Authentication failed. Response data: ${resp.data.libelleRetour}`
-      log('debug', errorMessage)
-      throw new Error(`code retour ko : ${resp.data.codeRetour}`)
     }
+    const errorMessage = `Authentication failed. Response data: ${resp?.data?.libelleRetour}`
+    log('error', errorMessage)
+    throw new Error(errors.VENDOR_DOWN)
   } catch (error) {
-    log('debug', error.message)
+    log('error', error.response?.data)
     Sentry.captureException(error, {
       tags: {
         section: 'authenticate',
@@ -239,7 +239,10 @@ async function authenticate(login, password, baseUrl, apiAuthKey) {
         compte: login,
       },
     })
-    throw new Error(errors.LOGIN_FAILED)
+    if (error.response?.data.codeRetour === -4) {
+      throw new Error(errors.LOGIN_FAILED)
+    }
+    throw new Error(errors.VENDOR_DOWN)
   }
 }
 
@@ -150187,7 +150190,7 @@ const fs = __webpack_require__(149);
 
 const path = __webpack_require__(142);
 
-let manifest = typeof {"version":"1.2.2","name":"EGL","type":"konnector","language":"node","icon":"icon.png","slug":"eglgrandlyon","source":"https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git","editor":"Métropole de Lyon","vendor_link":"www.grandlyon.com","frequency":"daily","categories":["energy"],"fields":{"login":{"type":"text"},"password":{"type":"password"},"advancedFields":{"folderPath":{"advanced":true,"isRequired":false}}},"data_types":[],"screenshots":[],"permissions":{"egl data":{"type":"com.grandlyon.egl.*"},"accounts":{"type":"io.cozy.accounts","verbs":["GET"]}},"developer":{"name":"Métropole de Lyon","url":"https://grandlyon.com"},"langs":["fr"],"locales":{"fr":{"short_description":"Courbe de charge depuis l'API Eau Publique du Grand Lyon","long_description":"Ce connecteur récupère la courbe de charge enregistrée par le compteur Téléo","permissions":{"egl data":{"description":"Requises pour accéder et stocker les données collectées par le compteur Téléo et exposées par les API Eau Publique du Grand Lyon (consommations d’eau au jour, mois et année)."},"accounts":{"description":"Utilisé pour accéder à vos données de consommation."}}},"en":{"short_description":"Water consumption data fetched from \"Eau Publique du Grand Lyon\" API","long_description":"This konnector fetches the data curve gathered by Téléo device.","permissions":{"egl data":{"description":"Required to access and store the data collected by the Téléo meter and exposed by Eau Publique du Grand Lyon APIs (daily, monthly and yearly consumption)."},"accounts":{"description":"Used to access your consumption data."}}}},"manifest_version":"2"} === 'undefined' ? {} : {"version":"1.2.2","name":"EGL","type":"konnector","language":"node","icon":"icon.png","slug":"eglgrandlyon","source":"https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git","editor":"Métropole de Lyon","vendor_link":"www.grandlyon.com","frequency":"daily","categories":["energy"],"fields":{"login":{"type":"text"},"password":{"type":"password"},"advancedFields":{"folderPath":{"advanced":true,"isRequired":false}}},"data_types":[],"screenshots":[],"permissions":{"egl data":{"type":"com.grandlyon.egl.*"},"accounts":{"type":"io.cozy.accounts","verbs":["GET"]}},"developer":{"name":"Métropole de Lyon","url":"https://grandlyon.com"},"langs":["fr"],"locales":{"fr":{"short_description":"Courbe de charge depuis l'API Eau Publique du Grand Lyon","long_description":"Ce connecteur récupère la courbe de charge enregistrée par le compteur Téléo","permissions":{"egl data":{"description":"Requises pour accéder et stocker les données collectées par le compteur Téléo et exposées par les API Eau Publique du Grand Lyon (consommations d’eau au jour, mois et année)."},"accounts":{"description":"Utilisé pour accéder à vos données de consommation."}}},"en":{"short_description":"Water consumption data fetched from \"Eau Publique du Grand Lyon\" API","long_description":"This konnector fetches the data curve gathered by Téléo device.","permissions":{"egl data":{"description":"Required to access and store the data collected by the Téléo meter and exposed by Eau Publique du Grand Lyon APIs (daily, monthly and yearly consumption)."},"accounts":{"description":"Used to access your consumption data."}}}},"manifest_version":"2"};
+let manifest = typeof {"version":"1.2.3","name":"EGL","type":"konnector","language":"node","icon":"icon.png","slug":"eglgrandlyon","source":"https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git","editor":"Métropole de Lyon","vendor_link":"www.grandlyon.com","frequency":"daily","categories":["energy"],"fields":{"login":{"type":"text"},"password":{"type":"password"},"advancedFields":{"folderPath":{"advanced":true,"isRequired":false}}},"data_types":[],"screenshots":[],"permissions":{"egl data":{"type":"com.grandlyon.egl.*"},"accounts":{"type":"io.cozy.accounts","verbs":["GET"]}},"developer":{"name":"Métropole de Lyon","url":"https://grandlyon.com"},"langs":["fr"],"locales":{"fr":{"short_description":"Courbe de charge depuis l'API Eau Publique du Grand Lyon","long_description":"Ce connecteur récupère la courbe de charge enregistrée par le compteur Téléo","permissions":{"egl data":{"description":"Requises pour accéder et stocker les données collectées par le compteur Téléo et exposées par les API Eau Publique du Grand Lyon (consommations d’eau au jour, mois et année)."},"accounts":{"description":"Utilisé pour accéder à vos données de consommation."}}},"en":{"short_description":"Water consumption data fetched from \"Eau Publique du Grand Lyon\" API","long_description":"This konnector fetches the data curve gathered by Téléo device.","permissions":{"egl data":{"description":"Required to access and store the data collected by the Téléo meter and exposed by Eau Publique du Grand Lyon APIs (daily, monthly and yearly consumption)."},"accounts":{"description":"Used to access your consumption data."}}}},"manifest_version":"2"} === 'undefined' ? {} : {"version":"1.2.3","name":"EGL","type":"konnector","language":"node","icon":"icon.png","slug":"eglgrandlyon","source":"https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git","editor":"Métropole de Lyon","vendor_link":"www.grandlyon.com","frequency":"daily","categories":["energy"],"fields":{"login":{"type":"text"},"password":{"type":"password"},"advancedFields":{"folderPath":{"advanced":true,"isRequired":false}}},"data_types":[],"screenshots":[],"permissions":{"egl data":{"type":"com.grandlyon.egl.*"},"accounts":{"type":"io.cozy.accounts","verbs":["GET"]}},"developer":{"name":"Métropole de Lyon","url":"https://grandlyon.com"},"langs":["fr"],"locales":{"fr":{"short_description":"Courbe de charge depuis l'API Eau Publique du Grand Lyon","long_description":"Ce connecteur récupère la courbe de charge enregistrée par le compteur Téléo","permissions":{"egl data":{"description":"Requises pour accéder et stocker les données collectées par le compteur Téléo et exposées par les API Eau Publique du Grand Lyon (consommations d’eau au jour, mois et année)."},"accounts":{"description":"Utilisé pour accéder à vos données de consommation."}}},"en":{"short_description":"Water consumption data fetched from \"Eau Publique du Grand Lyon\" API","long_description":"This konnector fetches the data curve gathered by Téléo device.","permissions":{"egl data":{"description":"Required to access and store the data collected by the Téléo meter and exposed by Eau Publique du Grand Lyon APIs (daily, monthly and yearly consumption)."},"accounts":{"description":"Used to access your consumption data."}}}},"manifest_version":"2"};
 
 if (process.env.NODE_ENV !== undefined && process.env.NODE_ENV !== 'none' && process.env.NODE_ENV !== 'production') {
   try {
@@ -240418,7 +240421,7 @@ var SpanStatus; (function (SpanStatus) {
 /***/ ((module) => {
 
 "use strict";
-module.exports = JSON.parse('{"name":"egl","version":"1.2.2","description":"","repository":{"type":"git","url":"git+https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git"},"keywords":[],"author":"Grand Lyon","license":"AGPL-3.0","main":"./src/index.js","eslintConfig":{"extends":["cozy-app"]},"eslintIgnore":["build"],"husky":{"hooks":{"pre-commit":"yarn lint"}},"scripts":{"start":"node ./src/index.js","dev":"cozy-konnector-dev","standalone":"cozy-konnector-standalone","pretest":"npm run clean","test":"konitor testit .","check":"konitor check .","clean":"rm -rf ./data","build":"webpack","lint":"eslint --fix .","deploy":"git-directory-deploy --directory build/ --branch ${DEPLOY_BRANCH:-build}","deploy-dev":"git-directory-deploy --directory build/ --branch ${DEPLOY_BRANCH:-build-dev}","cozyPublish":"cozy-app-publish --token $REGISTRY_TOKEN --build-commit $(git rev-parse ${DEPLOY_BRANCH:-build})","travisDeployKey":"./bin/generate_travis_deploy_key"},"dependencies":{"@sentry/node":"7.30.0","@sentry/tracing":"7.30.0","cozy-konnector-libs":"4.56.4","moment":"^2.24.0","moment-timezone":"^0.5.26","axios":"1.2.2"},"devDependencies":{"@types/moment-timezone":"^0.5.30","copy-webpack-plugin":"6.1.1","cozy-app-publish":"0.25.0","cozy-jobs-cli":"1.20.2","cozy-konnector-build":"1.4.4","eslint":"5.16.0","eslint-config-cozy-app":"1.6.0","eslint-plugin-prettier":"3.0.1","git-directory-deploy":"1.5.1","husky":"4.3.0","konitor":"0.10.2","standard-version":"^9.5.0","svgo":"1.3.2","webpack":"5.75.0","webpack-cli":"5.0.1"}}');
+module.exports = JSON.parse('{"name":"egl","version":"1.2.3","description":"","repository":{"type":"git","url":"git+https://forge.grandlyon.com/web-et-numerique/llle_project/egl-konnector.git"},"keywords":[],"author":"Grand Lyon","license":"AGPL-3.0","main":"./src/index.js","eslintConfig":{"extends":["cozy-app"]},"eslintIgnore":["build"],"husky":{"hooks":{"pre-commit":"yarn lint"}},"scripts":{"start":"node ./src/index.js","dev":"cozy-konnector-dev","standalone":"cozy-konnector-standalone","pretest":"npm run clean","test":"konitor testit .","check":"konitor check .","clean":"rm -rf ./data","build":"webpack","lint":"eslint --fix .","deploy":"git-directory-deploy --directory build/ --branch ${DEPLOY_BRANCH:-build}","deploy-dev":"git-directory-deploy --directory build/ --branch ${DEPLOY_BRANCH:-build-dev}","cozyPublish":"cozy-app-publish --token $REGISTRY_TOKEN --build-commit $(git rev-parse ${DEPLOY_BRANCH:-build})","travisDeployKey":"./bin/generate_travis_deploy_key"},"dependencies":{"@sentry/node":"7.30.0","@sentry/tracing":"7.30.0","cozy-konnector-libs":"4.56.4","moment":"^2.24.0","moment-timezone":"^0.5.26","axios":"1.2.2"},"devDependencies":{"@types/moment-timezone":"^0.5.30","copy-webpack-plugin":"6.1.1","cozy-app-publish":"0.25.0","cozy-jobs-cli":"1.20.2","cozy-konnector-build":"1.4.4","eslint":"5.16.0","eslint-config-cozy-app":"1.6.0","eslint-plugin-prettier":"3.0.1","git-directory-deploy":"1.5.1","husky":"4.3.0","konitor":"0.10.2","standard-version":"^9.5.0","svgo":"1.3.2","webpack":"5.75.0","webpack-cli":"5.0.1"}}');
 
 /***/ }),
 /* 1647 */
diff --git a/manifest.konnector b/manifest.konnector
index 366819339633ab86ef4a2aee878fc658554e0c4f..330af9dcfe115c3d78001694613a4550aaa09d4b 100644
--- a/manifest.konnector
+++ b/manifest.konnector
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "name": "EGL",
   "type": "konnector",
   "language": "node",
diff --git a/package.json b/package.json
index 1f45ae39af011d381e590b7279dd9031e3581e45..fcad023566a6843325e9963a3d51f9d31f43d14d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "egl",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "description": "",
   "repository": {
     "type": "git",