Dear Nikola I followed the instructions for Paypal Integration here: https://easy-appointments.net/documentation/paypal-setup-tutorial/ The Paypal integration is not working on my site: https://studylegalenglish.com/legalenglishclasses#Bookclass Upon payment in either production or sandbox the Paypal box is running an error: Error: Request to post https://www.paypal.com/v1/payments/payment failed with 403 error. Correlation id: e254cfb9cdf0e, e254cfb9cdf0e { "name": "PERMISSION_DENIED", "message": "No permission for the requested operation", "information_link": "https://developer.paypal.com/docs/api/payments/#errors", "debug_id": "e254cfb9cdf0e" } request/</<@https://www.paypalobjects.com/api/checkout.js:15266:39 ./node_modules/post-robot/src/index.js/RECEIVE_MESSAGE_TYPES<@https://www.paypalobjects.com/api/checkout.js:2797:31 receiveMessage@https://www.paypalobjects.com/api/checkout.js:2842:25 messageListener@https://www.paypalobjects.com/api/checkout.js:2863:13 ./node_modules/post-robot/src/index.js/RECEIVE_MESSAGE_TYPES<@https://www.paypalobjects.com/api/checkout.js:2797:31 receiveMessage@https://www.paypalobjects.com/api/checkout.js:2842:25 messageListener@https://www.paypalobjects.com/api/checkout.js:2863:13   ****   Please could you help? Thank you    Louise