Cloudflare Turnstile 600010

Hi, can you clarify why error 600010 occurs when Simple Cloudflare Turnstile plugin and Formidable Forms interact? How could we fix it?

Some screenshots:

https://app.screencast.com/6XxioUQxP9IdZ?conversation=sTbIngbtRFVrLhnrklr5hs

https://app.screencast.com/14WBTaAkfYfVa?conversation=x3ZWrLZ2Cl5ByiYdW0upnk

Thank you!