Broken plugin and functionality

Hi,

The update in the Plugins does not show for All in One. So after a backup, I manually installed via https://ftp.The updated All in One plugin completely broke the back-end of the site.
In the feed subscriptions I did see this warning:
Warning: http_build_query(): Parameter 1 expected to be Array or Object. Incorrect value given in .../public_html/wp-includes/Requests/Transport/cURL.php on line 507
Not sure if it’s related, but the calendar is unable to connect with ical. “There was an unexpected error with the request on subscribed calendars (error -1).”
Thank you for your help.