Google Chrome can be configured to save the browsing session on close so that the user can continue the session on the next startup. All websites and services that had been open in tabs are reopened on the next browser start. It sometimes happens that Google Chrome cannot open a website, displaying a dreaded “Oops! Google Chrome could not connect to” error instead.
Strange if the site was working fine some time ago. Users who check the website in another browser installed on the system would find out that the page loads and displays fine in that browser which leads to the only possible conclusion that it is a Google Chrome problem.