The Font Awesome plugin caught a fatal error.
When trying to load Font Awesome, the plugin’s configuration was invalid. Try deactivating, uninstalling, and re-activating the Font Awesome plugin.
The plugin font-awesome/font-awesome.php has been deactivated due to an error: The plugin does not have a valid header.
These are the two errors I saw after updating. I didn’t have the plugin activated when I did the update. After the error I checked here then followed your post, I uninstalled, re-installed, activated, no issues and everything seems fine.