It appears that the REST API is currently disabled on your server. To resolve this, we recommend contacting your hosting provider and requesting that the REST API be enabled for your site.
Additionally, please ask them to exclude the following endpoints from any authentication or security filters:
1. https://reserveandreceive.com/your-site-url/wp-json/ssgsw/v1/update
2. https://reserveandreceive.com/your-site-url/wp-json/ssgsw/v1/action
If you need any further assistance, feel free to reach out via our support system: https://wppool.dev/contact/
