When I search my brand name in Google, it showing error "site is hacked". How to fix this issue? sites: https://bilgidevi.com/ help please
Since the site is hacked and does not load at all, I suggest examining the source code to find where and how it was hacked. Fix that, then fix your security issues so it does not happen again. You will also probably need to contact Google ONCE THE HACKING AND SECURITY ISSUES ARE FIXED for them to remove the warning message. Contacting Google before fixing the issues is a waste of time.
Since this is a WordPress based website, you can install the WordFence Security plugin and scan your installation for potential vulnerabilities. You should also make sure that your WordPress installation and all plugins and themes are updated to the latest available version.