Dear Simon,
Thank you for your follow-up. Actually, the problem was a Chrome browser
error. Specifically, when I tried to download the last version, I was
encountering blank page massaging: "DNS_PROBE_FINISHED_NXDOMAIN". Then, I
followed some intersections on the web and finally fixed the problem.
For those who might face this issue in the future, the following link would
be useful:
https://www.drivereasy.com/knowledge/fix-dns-probe-finished-nxdomain-chrome/
Thanks again,
Hojjat