Salesforce Sandbox Connect

I want to connect to the Salesforce sandbox but pabbly rejecting the authorization.

Showed this message "Some error occour (Authorization Code)"

"https://connect.pabbly.com/callback-url?error=invalid_request&error_description=missing+required+code+challenge&state=eyJzb3VyY2UiOiJhcHBzIiwiaWQiOjQxNSwiYnRuX2lkIjoib19hdXRoX2J0bl8xNzIwNjEwMDA0NDM0NTkxMDcwNjE2NTE3MDM1IiwiYXBwX2lkIjo0MTV9"

Hey @Aniket Nikumbh

Currently, our Salesforce sandbox environment is in the beta phase. We are sharing the shareable link with you for this app. Kindly test the app and let us know if you are satisfied with the testing then we can make it live.

https://connect.pabbly.com/share-app/XBQAMgVSUzBWHAJoUwABJgAUAQUAWQhrUEkEFgcIUysATQJXUBEPZQFNUHJWGVc2UhsCaFQIBT9bTwsPVwEJegceBxIBHlANADNSFwNcDyVcPgB3BU5TaVYHAjFTGwE7AA8BJgBNCFVQXgQ-BxxTFQBZAnlQCg8BAUFQOFYZV31SGwJrVA0FJVti