Post server error since CF7 4.5.1.

Replies: 0

Hi,

I’ve loved the CF7 Conditional Fields plugin untill it stopped working recently: I recently updated CF7 to version 4.5.1. and since then all contact forms (with / without conditional fields in them) are showing the loading button forever after sending. I’ve disabled all plugins one by one and CF7 conditional fields is the one causing it.

Firebug says this but I don’t know what it means:
POST http://www.straight-fcdl.com/contact/

500 Internal Server Error
670ms
jquery….=1.12.4 (regel 4)
TypeError: xhr.responseJSON is null

typeof xhr.responseJSON.mailSent !== ‘undefined’ &&

Could you help me?