JaiFieldI was doing the automatic upgrade to 3.0 for one of my clients, and it stalled-out for the better part of 2 hours. When I had finally had enough, I refreshed the page, only to get this error:
Fatal error: Call to undefined function is_multisite() in /home/content/o/p/e/opeechee/html/wordpress/wp-includes/wp-db.php on line 505
I have looked through some of the articles and haven't seen this specific error message come up.
I know a bit of PHP, but not enough to feel comfortable just deleting/overwriting/replacing files or sections of code without a how-to, so I figured it's best to ask the pros.
The website is due for the client on Monday, so anyone with ANY help would be greatly appreciated.
