I just tried updating to the most recent WP version and got this message:
Fatal error: Call to undefined function _prime_post_caches() in /home/content/32/6831232/html/wp-includes/query.php on line 2645
This can't be good!!
I installed and used WP Total Backup before trying the upgrade, but I can't even get to my site...I just keep getting this Fatal Error message.
What can I do?