W3C css validator internal_error

Hi,
when i want check my css, the css validator return "I/O Error: Received
fatal alert: internal_error".

This is a bug ?

Validator link:
http://jigsaw.w3.org/css-validator/validator?uri=https://mortor.wtf/&profile=css3&usermedium=all&warning=1&vextwarning=&lang=fr

Best regard.

Received on Friday, 25 March 2016 21:29:43 UTC