I've been given a site that I need to install on my server. The site was made by someone else and it seems to have redis installed.

I get errors such as (paths altered/truncated in the error msg for privacy reasons):

Fatal error: Uncaught Error: Class 'Redis' not found in wp-content\object-cache.php:732 Stack trace: #0 wp-content\object-cache.php(171): WP_Object_Cache->__construct() #1 wp-includes\load.php(638): wp_cache_init() #2 wp-settings.php(131): wp_start_object_cache() #3 wp-config.php(94): require_once('\path\...') #4 wp-load.php(37): require_once('\path\gree...') #5 wp-blog-header.php(13): require_once('\path\...') #6 index.php(17): require('\path\...') #7 {main} thrown in wp-content\object-cache.php on line 732

What's really odd is that they didn't give me the WP codebase, just the wp-content folders with theme, plugins, uploads.

So the entire wp codebase, wp-config etc are all defaults that I've just obtained from the current latest version at Wordpress.org.

So if the wp-config is as default, how can some redis like system be coming into play? I've never had this issue before and transferred 101 pre-build WP sites between servers.

Can anyone assist ?