The connection used to load this site used TLS 1.0 or TLS 1.1, which are deprecated and will be disabled in the future. Once disabled, users will be prevented from loading this site. The server should enable TLS 1.2 or later.

 The connection used to load this site used TLS 1.0 or TLS 1.1, which are deprecated and will be disabled in the future. Once disabled, users will be prevented from loading this site. The server should enable TLS 1.2 or later.

Proceed to  (unsafe)

Please check below link 

https://docs.microsoft.com/en-us/security/engineering/solving-tls1-problem