Please try to format this file http://silentcode.org/bitrix/cache/css/s1/main/template_6fb3afcdea0e0b842910d8990e319c2a/template_6fb3afcdea0e0b842910d8990e319c2a.css?148381411788539 and see what happen.
My Sublime freezes
Its ok if I format online here https://prettier.io/playground/
And works fine in Visual studio code

thanks for help!