To resolve the issue of being unable to access the checkout page on the MANGO website, which redirects you back to the bag, follow these steps:

1. Clear Browser Cache and Cookies: Start by clearing the cache and cookies on your browser. This helps to remove any stored data that may be causing conflicts:
- Go to your browser settings.
- Locate the privacy or history section.
- Select the option to clear browsing data and ensure you choose cookies and cached files.

2. Disable Browser Extensions: Some extensions may interfere with website functionality:
- Go to your browser’s extension settings.
- Disable all extensions, especially ad blockers.
- Attempt to access the checkout page again.

3. Try a Different Browser or Device: Occasionally, certain browsers or devices can have compatibility issues:
- If you're using a mobile browser, switch to a desktop browser or vice versa.
- Check if accessing MANGO from a different device resolves the problem.

4. Check for Account Issues: Log into your MANGO account, as account settings may affect checkout:
- Ensure your payment method is valid.
- Review your saved addresses for any discrepancies.

5. Review Checkout Settings: Occasionally, checkout redirects can be due to misconfigured settings:
- If using a website builder, check the checkout settings within the admin panel to ensure the correct pages are set up. For example, in WooCommerce, ensure the correct checkout page is selected - learn more.

6. Look for Service Outages: Check if there are any known issues with the website:
- Visit social media platforms or MANGO's official website for alerts regarding service interruptions.

7. Contact Customer Support: If none of the above steps resolves the issue, it may be beneficial to contact MANGO customer support directly:
- Provide them with details about your issue, including screenshots if possible.

8. Check Forums for Similar Issues: Sometimes, community forums can provide insights regarding widespread issues:
- Check platforms like GitHub or Shopify for similar checkout issues that others may have encountered - learn more.

Following these steps should help you troubleshoot and potentially solve the checkout page redirection issue. If the problem persists, providing detailed information to customer support will be necessary for further assistance.