diff --git a/package-lock.json b/package-lock.json
index 3d1bc10..bbdcb16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "wbm",
-  "version": "1.1.9",
+  "version": "1.1.10",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -342,4 +342,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 696671a..7917280 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   },
   "name": "wbm",
   "description": "wbm is an API to send bulk messages in whatsapp.",
-  "version": "1.1.9",
+  "version": "1.1.10",
   "main": "src/index.js",
   "devDependencies": {},
   "repository": {
@@ -31,4 +31,4 @@
     "url": "https://github.com/Briuor/wbm/issues"
   },
   "homepage": "https://github.com/Briuor/wbm#readme"
-}
\ No newline at end of file
+}
diff --git a/src/api.js b/src/api.js
index 1574587..2a2dc52 100644
--- a/src/api.js
+++ b/src/api.js
@@ -53,6 +53,9 @@ async function start({ showBrowser = false, qrCodeData = false, session = true }
     }
 }
 
+/**
+ * Check if needs to scan qr code or already is is inside the chat
+ */
 function isAuthenticated() {
     console.log('Authenticating...');
     return merge(needsToScan(page), isInsideChat(page))
@@ -72,11 +75,7 @@ function needsToScan() {
 function isInsideChat() {
     return from(
         page
-            .waitForFunction(`
-        document.getElementsByClassName('app')[0] &&
-        document.getElementsByClassName('app')[0].attributes &&
-        !!document.getElementsByClassName('app')[0].attributes.tabindex
-        `,
+            .waitForFunction(`document.getElementsByClassName('h70RQ two')[0]`,
                 {
                     timeout: 0,
                 }).then(() => true)
@@ -107,7 +106,7 @@ async function generateQRCode() {
         const qrcodeData = await getQRCodeData();
         qrcode.generate(qrcodeData, { small: true });
         console.log("QRCode generated! Scan it using Whatsapp App.");
-    } catch {
+    } catch (err) {
         throw await QRCodeExeption("QR Code can't be generated(maybe your connection is too slow).");
     }
     await waitQRCode();
@@ -120,7 +119,7 @@ async function waitQRCode() {
     // if user scan QR Code it will be hidden
     try {
         await page.waitForSelector("div[data-ref]", { timeout: 30000, hidden: true });
-    } catch {
+    } catch (err) {
         throw await QRCodeExeption("Dont't be late to scan the QR Code.");
     }
 }
@@ -150,13 +149,14 @@ async function sendTo(phoneOrContact, message) {
         await page.goto(`https://web.whatsapp.com/send?phone=${phone}&text=${encodeURI(message)}`);
         await page.waitForSelector("div#startup", { hidden: true, timeout: 60000 });
         await page.waitForSelector('div[data-tab="1"]', { timeout: 5000 });
+        
         await page.keyboard.press("Enter");
         await page.waitFor(1000);
         process.stdout.clearLine();
         process.stdout.cursorTo(0);
         process.stdout.write(`${phone} Sent\n`);
         counter.success++;
-    } catch {
+    } catch (err) {
         process.stdout.clearLine();
         process.stdout.cursorTo(0);
         process.stdout.write(`${phone} Failed\n`);
diff --git a/test.js b/test.js
index 869ab1c..9d3fde6 100644
--- a/test.js
+++ b/test.js
@@ -1,7 +1,7 @@
 const wbm = require('./src/index');
 
 (async () => {
-    await wbm.start().then(async () => {
+    await wbm.start({showBrowser: true}).then(async () => {
         const phones = ['5535988841854', '35988841854', '5535988841854'];
         const message = 'Good Morning.';
         await wbm.send(phones, message);