Coapny website down with 524 error

Hi everyone, my company website is hosted on AWS and domain is from Cloudflare. All of a sudden, my company website gets down and gave 524 host error can someone please help me? At AWS both instances are running fine.

Hello, a 524 error indicates that Cloudflare made a successful TCP connection to the origin web server, but the origin did not reply with an HTTP response before the connection timed out. Review the suggestions in this Community Tip for troubleshooting ideas.