ReCaptcha Shows “Sorry, an error occured.” In Pirate Forms WordPress

I’ve used Pirate Forms Plugin on my WordPress website (in Zerif Lite Theme) for the Contact Us page. In order to avoid bots from sending spam messages, I have recently added reCaptcha which is working fine. However, I am seeing the error Sorry, an error occured. upon clicking the submit button without filling reCaptcha. Also, the user is taken to the top of the page instead of showing him/her the error on the same place which he/she will be seeing after navigating back to the bottom of the page.

I want to show a proper message like “Invalid ReCaptcha (if reCaptcha is invalid)” or “Fill ReCaptcha (if the user is trying to submit the form without filling reCaptcha)”. Also, I want to allow users to see the error without navigating down the page. I have tried my best but there is no setting which can help me.

The page I need help with: [log in to see the link]