i’ve the same problema but i’ve put the right domain like as https://domain.com in both field but doesn’t works…
https://www.fastsecurecontactform.com/problem-captcha-image is not my case because the permissions are good…and if i try a test page it continue to show me the error:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.