UPDATE
here are the logs
2020/09/29 19:10:12 [error] 27863#27863: *309282 "/home/afkarla/public_html/******.com/index.php" is forbidden (13: Permission denied), client: , server: ******.com, request: "GET / HTTP/1.1", host: "*****.com"
i have tried fix permission in cwp admin but problem is still there