Can’t translate CAPTCHA response

Hello,

I am using Really Simple CAPTCHA together with Contact Form 7.

I’d like to translate the CAPTCHA response: “Your entered code is incorrect.”

I tried with Loco translate – it did not work. Nothing happened after translating the line above. ( Yes I saved, synchronized, purged chache… )

Then I found this thread: https://wpml.org/forums/topic/i-cant-figure-out-how-to-translate-the-captcha-error-message-your-entered-code/#post-1135934

but in my version of Contact Form 7 I do not find this field named: “The code that sender entered does not match the CAPTCHA.”

I am out of Ideas…

Any suggestions how I could translate the line above?

Dejan