Yeah, i have restarted the full stack.
It's weird error, it only appears when i change cache settings.
I have checked the link, but it does not apply to my case, i am not having a 504, it seems like its working, but is unresponsive.
Maybe is a bug? I has some previous problems with prestashop and friendly url before, but after a update of the deployment it comes with it enabled and working perfectly.