Hi! My previous support thread was about this very same issue. On my contact page where I use Contact Form 7 I get the error message Unexpected token < in JSON at position 0 when I send a message. The message gets sent to my Inbox but the user does not get a thank you message.
It somehow seemed to solve itself the last time it appeared, which was about a month ago. Everything is updated in Wordpress and plugins.
I have pruged cache and set Cloudflare in Development mode so that it does not cache my website at all.
www.markusp.se/kontakt
