having issues with fresh install of cmsms-2.2.10-install

[Femaven]

I'm able to get through all the steps on a fresh ec2 instance in AWS but it fails on the final step with the following output.

phar:///var/www/html/cmsms-2.2.10-install.php/lib/CMSMS/Database/class.compatibility.php:67 - offsetGet
/var/www/html/lib/classes/class.CmsApp.php:313 - init
/var/www/html/lib/include.php:168 - GetDb
phar:///var/www/html/cmsms-2.2.10-install.php/app/wizard/class.wizard_step9.php:189 - include_once
phar:///var/www/html/cmsms-2.2.10-install.php/app/wizard/class.wizard_step9.php:158 - connect_to_cmsms
phar:///var/www/html/cmsms-2.2.10-install.php/app/wizard/class.wizard_step9.php:223 - do_freshen
phar:///var/www/html/cmsms-2.2.10-install.php/lib/classes/class.wizard_step.php:38 - display
phar:///var/www/html/cmsms-2.2.10-install.php/lib/classes/class.wizard.php:141 - run
phar:///var/www/html/cmsms-2.2.10-install.php/app/class.cms_install.php:406 - process
phar:///var/www/html/cmsms-2.2.10-install.php/index.php:31 - run
- unknown
/var/www/html/cmsms-2.2.10-install.php:8 - webPhar
FATAL ERROR: Could not find database connection key "dbms" in the config file

when I look at config.php, it's blank.

and the permissions on config.php are

[ec2-user@ip-xxxxxxxxxxx html]$ ls -la config.php
total 6836

-rwxrwxrwx 1 ec2-user apache 0 Mar 13 18:40 config.php