These are the files I downloaded and replaced from Github site: https://github.com/PrestaShop/PrestaShop/tree/develop/config:
.htaccess
alias.php
autoload.php
bootstrap.php
config.inc.php
This is the error I'm getting trying to access our website www.themedicalsupplyco.com:
Fatal error: Uncaught Error: Class 'PrestaShop\PrestaShop\Core\Version' not found in /home2/caribbg2/public_html/config/autoload.php:32 Stack trace: #0 /home2/caribbg2/public_html/config/config.inc.php(36): require_once() #1 /home2/caribbg2/public_html/index.php(27): require('/home2/caribbg2...') #2 {main} thrown in /home2/caribbg2/public_html/config/autoload.php on line 32