Not getting connected to Stream

Hello, I have inmstalled this plugin. but it is not getting connected. The url is opening and the page is not available message is showing. The url is https://wp-stream.com/pricing/?auth=true&action=connect&home_url=******.com&plugin_url=http%3A%2F%2F*****.com%2Fwp-admin%2Fadmin.php%3Fpage%3Dwp_stream%26nonce%3D0a61874a7b

Till then, Please give the url of previous version of 1.4.8 or 1.4.9 so that i can get back to it.

https://www.ads-software.com/plugins/stream/