Need help with domain

I need help @support I sent you an email from this account to hopefully writing here will initiate a response as it kinda sounds like you are on holiday at the moment. My domains www. part has stopped working for two blogs. The details are in the email I sent, as it contains private data. Thank you! The main error is relating to: “DNS_PROBE_FINISHED_NXDOMAIN” showing when I enter only the www. part of my domain despite it being set correctly in my DNS settings. Does anyone know a reason why this might be happening incase I don’t hear back from support. Many thanks!