pagespeed_console just stopped working?

[Ovidiu Pacuraru]

here is the config in case it helps: http://www.ict-consult.co.za/ngx_pagespeed_statistics?config the ngx_pagespeed_statistics work just fine !? 

If I look at the source code, there is content though...

All that I remember doing on the server today, was tweaking the firewall and fail2ban but nothing seems related to this...