I ran into a problem - maybe you folks know the solution. Version is 1.3.5
I have a simple form, which saves data in the DB and emails. It has captcha activated. When I enter wrong captcha code and click submit button, it results in '500 - Layout "blog" not found' error. I see that it redirects to 'articles/index.php?option=com_ckforms&view=ckforms&task=send&id=3'. Captcha has custom error text provided. I only see this text when captcha is left blank.
If captcha is entered correctly, no problem. It gets redirected to specified success page. If I remove captcha, it works OK as well. It seems that there is a bug in captcha validation, or I have made a stupid mistake, but I cannot see it.
Thanks for a hint or solution.