Hello,
Thank you for reaching out to us with your concern. We understand the inconvenience this issue may be causing to you and your customers.
The error message “WpOrg\Requests\Transport\Curl::request(): Argument #3 ($data) must be of type array|string, boolean given” typically indicates that there is a mismatch in the expected data type being passed to a function in your Cashfree payment gateway integration. This could be due to several reasons, such as a recent update to the plugin or changes in the API requirements by Cashfree.
Please temporarily activate the Storefront theme (Appearance > Themes) and check how it works with this default WooCommerce theme. Let us know the result.
Best Regards,
8Theme’s Team