how can i set up the captcha when users sign up or ask a question
or any other anti-spam software
because the hosting company contacted me yesterday and said there are a high amount of fake and spam users sign up in my site and i must set up captcha and anti-spam software or they will suspend the account
i tried to set up the captcha pluging and added the site key and the secret key but when i try to register the captcha doesnt work i get this message
ERROR for site owner: Invalid key type
what does this mean?