Thanks for the heads up @christer_f, I deleted an old unused MailPoet signup form and it removed the error message.
Hi @nlikens, I see your site is working again now, what was your solution? Disabling all my plugins doesn’t seem to be fixing our issue either.
Cheers.
https://JurassicArk.com
Disabling the “Follow-Up Emails” plugin seemed to fix our issue.
We are getting the same errors too.
Deactivating “WP All Export” also solved the same problem for me.
Thanks nikkoboy, I’ve been baffled by this error for months.