Website not accesible afer activating Mamp Viewer

[mcampa0902]

I have been building my website on WordPress locally on my computer using Mamp Pro. The site is nearly finished. Today, I attempted to check it on my phone by activating the "Show in Mamp Viewer" option. However, I immediately lost connection in my browser and the site no longer shows up. The URL has also changed from xxx.com:8890 to xxx.com.local.local:8890, and the site is no longer accessible. I get the following message:
"This site can’t be reached
Check if there is a typo in c3studioav.com.local.local.
DNS_PROBE_FINISHED_NXDOMAIN."

I would appreciate any suggestion.

Thank you.