I'm installing Zen Cart for the first time and using version 3.1.8a. My URL for the store is theotherscene dot com/shop and durring zen cart setup server inspection, I get this "X":

The session.use_trans_sid setting in your server's PHP.INI file is set to ON.

I look at how to fix the problem:

You can disable that feature via a .htaccess file or directly from PHP code.

For a .htaccess file you should add the following line:

php_flag session.use_trans_sid off

And in PHP code:

ini_set('session.use_trans_sid', false);

However there are several .htaccess files and not sure how to fix this. Thank you for your time.