Similar issue here, although at least my site’s still looking okay.
I presume the theme update is what’s lead to this warning popping up all over my dashboard:
“Warning: include(/home3/shingle/public_html/wp-content/themes/coraline/inc/updater.php): failed to open stream: No such file or directory in /home3/shingle/public_html/wp-content/themes/coraline/functions.php on line 517”
How do I fix without switching theme?