cakePHP 2 this->layout is not working

I have a CakePHP 2.0 and php 7.1.3 and my site hosted on cPanel and on this site I have a management area, but for some reason, this area only works properly at localhost, if I upload the site into the shared server it just shows up a blank page and not showing any error.
I already set all folder permistion to 755 and files to 744

try putting a dummy-php file to see what is shown in that folder

// in your cpanel folder, index.php
echo 'i am here';

Have you enabled debug mode in your configuration? Have you looked in Cake and Apache logs to see what they are telling you about your error?