Hello.
This error usually appears whenever a page is unavailable.
It's possible for the web server running a website, the routers, and other equipment that connects your computer to the server to go down. Changes, maintenance, patching, or other issues can cause the web server or routers to be unavailable. When this happens, your computer/phone may get an error (for example: 404 error) or timeout when trying to access a website. This could be a potential cause, especially if the connection is lost intermittently.
Also, do you use Bitdefender VPN on your phone?
If so, check out these articles:
or
and see if the steps in the articles will help you.
Regards.
If you're encountering an error message like "The requested URL was not found on the server" while trying to open a Gmail account, it's likely a technical issue. Here are some steps you can take to troubleshoot the problem:
Remember to be cautious about the information you enter online and the websites you visit. Ensure that you are using the official Gmail sign-up page and not a phishing site. Double-check the URL in your browser's address bar for authenticity.