Error: 400 Bad Request: Invalid parameter value: host

[IanMoroney]

resource "pingdom_check" "my_website" {
    type = "http"
    name = "My Website Check"
    host = "https://www.example.com"
    resolution = 1
    sendnotificationwhendown = 2 # alert after 5 mins, with resolution 5*(2-1)
    integrationids = [
    ]
    userids = [
      pingdom_contact.my.id,
    ]
}

Error: 400 Bad Request: Invalid parameter value: host