sophil

Thanks for RK’s kind and professional help. the issue was gone.

Final solution for this issue, For those experiencing the same problem

1) , add test.php(serch it in page)file to ftp(wp-config.php folder). right way to to open test. php. like https://abc.com/test.php

2) ,add IP + domain www.domain into the /etc/hosts file

Check cmd: ~# tail -n 1 /etc/hosts
result: 1.2.3.4 abc.com wwwabc.com