Have been using si-contact-form for ages and it has stopped working on several sites.
Here is one site http://coachestrainingblog.com/becomeacoach/contact/
Note - when I visit the website the http:// is getting stripped off, does this matter for the captcha image URL to match?
I switched to a default wordpress theme, no captcha image.
I disabled all plugins except si-contact-form, no captcha image.
I checked file permissions. wp-content was 705. I changed it to 755, no captcha image. Other permissions looked ok.
What else to try?
Thanks in advance.