diff --git a/README.md b/README.md
index bf9bd77..ecf2ff1 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # reCAPTCHA Solver Using 2Captcha and Selenium
 
 This project automates [bypass Google reCAPTCHA] v2 with image challenges (3x3 and 4x4) using the 2Captcha service 
-([captcha solver]) and Selenium WebDriver. The script programmatically interacts with reCAPTCHA, retrieves data for 
+[captcha solver] and Selenium WebDriver. The script programmatically interacts with reCAPTCHA, retrieves data for 
 solving, sends it to [reCAPTCHA solver] for processing, and then submits the solution.
 
 ![bypass_recaptcha_v2_selenium_final2.gif](media%2Fbypass_recaptcha_v2_selenium_final2.gif)
@@ -32,7 +32,7 @@ The project is structured as follows:
 ### Clone:
 
 ```
-git clone git@github.com:2captcha/selenium-recaptcha-solver-using-grid.git
+git clone https://github.com/2captcha/selenium-recaptcha-solver-using-grid.git
 cd selenium-recaptcha-solver-using-grid
 ```
 
@@ -50,11 +50,13 @@ pip install -r requirements.txt
 
 ### Configure:
 
-Set the `APIKEY` environment variable. You can get the `APIKEY` value in your personal [2captcha account][2captcha].
-
+For Linux/Mac:
 `export APIKEY=your_api_key`
 
-You can also set the value of `APIKEY` directly in the code. To do this, modify the `apikey` value in the following file: [main.py, line 10].
+For Windows:
+`set APIKEY=your_api_key`
+
+You can also set the value of `APIKEY` directly in the code. To do this, modify the `apikey` value in the following file: [main.py line 10].
 
 ### Example Command
 ```bash
diff --git a/js_scripts/get_captcha_data.js b/js_scripts/get_captcha_data.js
index b7866d3..e7ee1ab 100644
--- a/js_scripts/get_captcha_data.js
+++ b/js_scripts/get_captcha_data.js
@@ -2,13 +2,14 @@ window.getCaptchaData = () => {
     return new Promise((resolve, reject) => {
         let canvas = document.createElement('canvas');
         let ctx = canvas.getContext('2d');
-        let comment = document.querySelector('.rc-imageselect-desc-wrapper').innerText.replace(/\n/g, ' ');
+        let comment = document.querySelector('.rc-imageselect-desc-wrapper')?.innerText?.replace(/\n/g, ' ') || '';
 
         let img4x4 = document.querySelector('img.rc-image-tile-44');
         if (!img4x4) {
             let table3x3 = document.querySelector('table.rc-imageselect-table-33 > tbody');
             if (!table3x3) {
                 reject('Can not find reCAPTCHA elements');
+                return;
             }
 
             let initial3x3img = table3x3.querySelector('img.rc-image-tile-33');
@@ -26,7 +27,7 @@ window.getCaptchaData = () => {
                     { x: 0, y: ctx.canvas.height / 3 * 2 }, { x: ctx.canvas.width / 3, y: ctx.canvas.height / 3 * 2 }, { x: ctx.canvas.width / 3 * 2, y: ctx.canvas.height / 3 * 2 }
                 ];
                 updatedTiles.forEach((t) => {
-                    const ind = t.parentElement.parentElement.parentElement.tabIndex - 3;
+                    const ind = t.parentElement?.parentElement?.parentElement?.tabIndex - 3 || 0;
                     ctx.drawImage(t, pos[ind - 1].x, pos[ind - 1].y);
                 });
             }