Error: failed to activate. TypeError: Failed to fetch

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Cannot change Jetpack settings, get the error: …. failed to activate. TypeError: Failed to fetch

My admin backend is HTTPS
I turned on the developer tool and looked at the network tab and noticed that

http://….com/wp-json/jetpack/v4/connection/url is blocked.
http://….com/wp-json/jetpack/v4/site is blocked.
http://….com/wp-json/jetpack/v4/settings is blocked.
http://….com/wp-json/jetpack/v4/settings is blocked

{“code”:”invalid_user_permission_jetpack_disconnect”,”message”:”You do not have the correct user permissions to perform this action.\n\t\t\tPlease contact your site admin if you think this is a mistake.”,”data”:{“status”:401}}