In trying to decipher this error....the only error showing in my Debug Logs was for a plugin I have yet to install, ZX Slideshow, but is throwing an error as my Custom template file includes some code that is calling for this plugin.

I decided to uninstall the Cross Sell plugin first, (deleted all uploaded files and ran the SQL Unistall). I then installed the ZX Slideshow plugin, and everything in my Index page center column magically appeared!

I then installed the Cross Sell plugin once again, went to Admin and see it in the Admin->Config and in the Admin->Catalog.

Now when I load my site I get a total white screen with the following in the Debug Log:

[27-Jan-2025 17:05:19 UTC] Request URI: /plugin21/, IP address: 127.0.0.1, Language id 1
#0 C:\wamp64\www\new2121\includes\autoload_func.php(40): zen_debug_error_handler()
#1 C:\wamp64\www\new2121\includes\autoload_func.php(40): require_once()
#2 C:\wamp64\www\new2121\includes\application_top.php(329): require('C:\\wamp64\\www\\p...')
#3 C:\wamp64\www\new2121\index.php(25): require('C:\\wamp64\\www\\p...')
--> PHP Warning: require_once(includes/init_includes/init_xsell_config.php): Failed to open stream: No such file or directory in C:\wamp64\www\new2121\includes\autoload_func.php on line 40.

[27-Jan-2025 17:05:19 UTC] PHP Fatal error: Uncaught Error: Failed opening required 'includes/init_includes/init_xsell_config.php' (include_path='.;C:\php\pear') in C:\wamp64\www\new2121\includes\autoload_func.php:40
Stack trace:
#0 C:\wamp64\www\new2121\includes\application_top.php(329): require()
#1 C:\wamp64\www\new2121\index.php(25): require('C:\\wamp64\\www\\p...')
#2 {main}
thrown in C:\wamp64\www\new2121\includes\autoload_func.php on line 40

[27-Jan-2025 17:05:19 UTC] Request URI: /new2121/, IP address: 127.0.0.1
--> PHP Fatal error: Uncaught Error: Failed opening required 'includes/init_includes/init_xsell_config.php' (include_path='.;C:\php\pear') in C:\wamp64\www\new2121\includes\autoload_func.php:40
Stack trace:
#0 C:\wamp64\www\new2121\includes\application_top.php(329): require()
#1 C:\wamp64\www\new2121\index.php(25): require('C:\\wamp64\\www\\p...')
#2 {main}
thrown in C:\wamp64\www\new2121\includes\autoload_func.php on line 40.

[27-Jan-2025 17:05:19 UTC] Request URI: /new2121/, IP address: 127.0.0.1
--> PHP Fatal error: Uncaught Error: Failed opening required 'includes/init_includes/init_xsell_config.php' (include_path='.;C:\php\pear') in C:\wamp64\www\new2121\includes\autoload_func.php:40
Stack trace:
#0 C:\wamp64\www\new2121\includes\application_top.php(329): require()
#1 C:\wamp64\www\new2121\index.php(25): require('C:\\wamp64\\www\\p...')
#2 {main}
thrown in C:\wamp64\www\new2121\includes\autoload_func.php on line 40.

I have double checked and reuploaded the file the Admin/includes/init_includes/init_xsell_config.php without any change.

Would you be able to shed some light on where I've gone wrong??

Thanks for your help.