2.14.9.12. Enable debug mode in PrestaShop

  1. Open the site file config/defines.inc.php in the built-in editor of file manager or any FTP client.
  2. Find the line with the parameter _PS_MODE_DEV_:
    define('_PS_MODE_DEV_', false);
  3. In the line you found, replace false with true and save your changes:
    define('_PS_MODE_DEV_', true);
  4. Reproduce the error on your site.

After finding the source of errors on your site and fixing them, you should disable debug mode.

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