Just tried
$ curl -A Twitterbot https://www.hopwork.com/profile/jean-baptistelemee
<html>
<head><title>403 Forbidden</title></head>
<body bgcolor="white">
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx/1.6.2</center>
</body>
</html>
So it looks like your server is rejecting requests from Twitterbot.