wordpress form recaptcha adding

I have a wordpress site, and I need to add a recaptcha to the contact form of that site.

Also please fix the following wordpress error: Technical Issue (wp_php_error_message)
Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/lowvoltage/public_html/wp-content/plugins/tigoncore/vc-components/output/tigon-vc-brands.php:42

Already talked with someone, so don't place bid.