Hello, Remilekun Farotade,
503 Service Unavailable – this server error response code indicates that the server is not ready to handle the request. Common causes are a server that is down for maintenance or that is overloaded. Please contact your hosting provider and ask about assistance from their side.
https://prnt.sc/MjMCw4h6ioCh – you need to update the theme https://xstore.helpscoutdocs.com/article/63-theme-update Please do not update Core plugin before the theme update.
We face this error on your site https://prnt.sc/djTULbwPwMrJ – , please contact your hosting providers and ask them to give you a server error log to check what is wrong.
Kind Regards,
8theme team