make sure, that your hosting support php version and modules, which are require for you WP addon and wp version
check web server logs for error
look like hacked site
try ro restore site from backup,
or compare site files with backup copy
Woocommerce was updated?
make sure for required php ver and Woocommerce php modules.
after update, software requirements may be higher/vary.
hello!
is domain name linked on your own NS-servers or ip?
also, make sure that .htacess have no wrong redirection.
check site content for wrong symlinks.
