Amazon S3 Integration is disabled

Hello,

Thanks for the great plugin. I am using the free version of Smush plugin. Currently the Amazon S3 integration appears to be disabled https://nimb.ws/EdS1kh. It says that “Automatic smushing” should be enabled on your site which is already enabled (https://nimb.ws/8xute3) but still the S3 integration is disabled.

We have all our images on S3 and we need this option enabled in Smush. Is it active only in PRO version ? Please let me know

Thanks
Penuel