I got the same bunch of warning messages as mentioned in this posting, but it happened after I updated to the latest version of WordPress this morning. I tried deleting Hummingbird plugin, but am still getting the same messages.
My website is https://www.Pioneerpublishers.com and the messages are currently showing at the top of my website.
Should I try the same fix posted above, even though the problem started before I actually deleted the plugin?
Thanks.