now that site is opening.
that is apache server DocumentRoot problem in shared hosting. Because, in shared hosting we can’t change main domain DocumentRoot it’s pointing to public_html folder.So, we adjusted in .htaccess file in public_html folder pointing to /farmOS/web/. tank you. Already described in this topic https://farmos.discourse.group/t/install-and-update-farmos-on-shared-hosting/2215