Redirect from https://cardiosmart.org to https:www.cardiosmart.org

you can modify the https virtual server irule but it won't fix certificate warning page since HTTP_REQUEST is triggered after ssl handshake.

also, you may set event priority to make sure irules are executed in correct order.

The101: iRules 101 - Events & Priorities by Colin Walker

when HTTP_REQUEST priority 600 { 
  switch [string tolower [HTTP::host]] {
    "healthandwellness.cardiosmart.org" -
    "cardiosmart.org" { 
      HTTP::redirect "https://www.cardiosmart.org[HTTP::uri]" 
    }
  } 
}