reCaptcha works properly on PHP 7.0 but doesn't work on PHP 7.4

Post date: 2020-07-04 03:15:44
Views: 12
I changed PHP version in Cpanel from 7.0 to 7.4 and after that reCAPTCHA displays properly, validates properly, but shows error "Please complete the anti-spam verification" when you click submit button on any form registration / question / comment.

Now I've made a teporary solution by changing PHP version back to 7.0 and reCAPTCHA works properly, but eventually I'd like to have PHP version 7.4. Any ideas?

Plugin: reCAPTCHA v2.0

Edit: I've made a few tests - I've changed PHP version to 5.4, 7.0 (native), 7.1, 7.4 and reCaptcha works correctly on my Q2A site only on PHP 7.0 (native).
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