Artbees Themes Ken Theme VC Contact Form/Captcha Console Error: POST 500 (Internal Server Error)

Hello fellow developers and problem-solvers,

I’m having an issue with a WordPress website that uses the Contact Form with Captcha with the Ken Theme (Visual Composer) when submitting the form. I did some tests and every time I submit. I get a red line for the Captcha field.

captcha error on Contact Form WordPress Ken Theme Visual Composer

This link suggests installed the “Artbees Themes Captcha” plugin, but when searching the WordPress plugin directory, nothing is found:
https://themes.artbees.net/docs/contact-form-shortcode/

Here’s a screenshot of the error that I am getting.

Artbees Themes Ken Theme VC Contact Form/Captcha Console Error: POST 500 (Internal Server Error) )

I did searches for this particular error and I wasn’t able to find a solution.

Is it possible to put a captcha in my chrome extension?

I’m creating a voting system in my extension and if its possible I would like to add captcha to restrict people from voting again.