Page cannot be reach in Google Side

Hi, can you guys help me from this issue?

I’ve domain and cyberpanel server that running on SSL & PHP 8.0

The SSL is activated. But when i check amp test on that domain, google say

“Page cannot be reached
This may happen because the page is unavailable or blocked by robots.txt”

also i’ve test on google search console to, the error was same.

my website have normal robot.txt, not blocking any pages. I’ve try to re-install the cyberpanel, but still i face the same issue. What should i do?