Javierlota on "[Plugin: Blogger Importer] Invalid Token: Check server date, firewall settings and transports (curl, strea"

I'm trying to import a blog from blogger using version 0.6 BETA of blogger-importer and it gives me this error:

Invalid Token: Check server date, firewall settings and transports (curl, streams and fsockopen)

How can I fix it?

Thanks!

http://wordpress.org/extend/plugins/blogger-importer/