Hello 8Theme,
I have the exact same issue of the original poster, @erinok, did back in November 2017. When investigating the permissions on my really-simple-captcha folder I see that there is no longer a tmp directory.
Here is a screen shot of my directories…
Can you please advise on getting really-simple-captcha to show up on the Register page?
See: https://hdtruckengines.com/register/
