Captcha error on User Control Panel Registration page

-- url of the page with the problem -- : www.midwestmeats.com.au/login?view=registration
-- HikaShop version -- : 3.5.1
-- Joomla version -- : 3.8.13
-- PHP version -- : 7
-- Browser(s) name and version -- : Firefox
-- Error-message(debug-mod must be tuned on) -- : Captcha plugin not set or not found. Please contact a site administrator.

I only have the Hikashop ReCaptcha plugin in use.

On the user registration page accessed via the User Control Panel there is still a Captcha field (generic Joomla one) as well as the Hikashop one.

See attached screenshot.

When you try and register you get a 404 error.

Is there another setting I need to change to disregard the generic Captcha.

Thanks Nicolas

I changed the Options under User Manager for the Captcha to "None Selected" and this solved the issue.