Let Encrypt SSL Setup

Trying to add Let’s Encrypt SSL on tyk-gateway 2.8.3 without success. The logs show the following

2019/07/30 11:09:29 [INFO] acme: Registering account for 
time="Jul 30 11:09:30" level=info msg="[SSL] State change detected, storing" 
2019/07/30 11:09:30 [INFO][redacted-.domain.com] acme: Obtaining bundled SAN certificate
2019/07/30 11:09:30 [INFO][redacted.domain.com] acme: Could not find solver for: tls-alpn-01
2019/07/30 11:09:30 [INFO][redacted.domain.com] acme: Could not find solver for: http-01
2019/07/30 11:09:30 [INFO][redacted.domain.com] acme: Could not find solver for: dns-01
2019/07/30 11:09:30 http: TLS handshake error from 10.32.0.1:50578: map[redacted.domain.com:[redacted.domain.com] acme: Could not determine solvers]

Tyk config ssl option is as follows

...
"http_server_options": {
    "enable_websockets": true,
    "use_ssl_le": true,
  },
...

Am i missing something?
Same errors happening on Docker as well as Kubernetes