[Upgrading to Revive5]

I have tried to follow the upgrade instructions located at:

https://www.revive-adserver.com/support/upgrading/

I've obviously missed something but I can't find it.

When I run the mywebsite.com/adserver_new I get the following errors:

Warning: require_once(init.php): failed to open stream: No such file or directory in /home/scoyote/public_html/adserver_new/index.php on line 21

Fatal error: require_once(): Failed opening required 'init.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/scoyote/public_html/adserver_new/index.php on line 21

I can't see anything wrong, but I'm guessing it has happened to someone before?

Hopefully?

TIA for any help