Getting error for Captcha

Hi, I tried to use captcah on my wordpress blog but when people try to comment they get this error:

ERROR: That reCAPTCHA response was incorrect.
This reCAPTCHA key isn’t authorized for the given domain. More info

I’m having trouble with RSS too. I am hosting the blog with a hosting company and set it up myself. I imported my entire blog from blogger.com, and it looks great, but soooo many glitches with plugins and RSS.

https://www.justaintrightblog.com

Could a factor be that I have the domain forwarded to https://www.maryvogt.com/justaintright?

Thanks for any help!!!!!