Neither do I and I'm also french. I've checked on the french wiktionary[1] and in fact that's a real french saying. But I've never heard someone say this in my all life.
We're sorry!
An error occurred when we tried to process your request. Rest assured, we're already working on the problem and expect to resolve it shortly.
and now:
This page isn’t working
aws.amazon.com is currently unable to handle this request.
HTTP ERROR 503