How to fix NoCaptcha error with site key?

In my my laravel 5.7.3 application I use https://github.com/anhskohbo/no-captcha For this I installed this package and added refs to config/app.php file. After that I went By link and with my google account I have next account : https://imgur.com/a/leBrPOt

But inserting next rows in my blade template:

    <div class="form-row mb-3">
        {!! NoCaptcha::renderJs() !!}
    </div>

and in my .env file I added lines :

NOCAPTCHA_SECRET=6LcRPHEUAAAAAKXPSZt0Hjjibxa1p_iq6XbH6sFk
NOCAPTCHA_SITEKEY=6LcRPHEUAAAAAPx8iLqBT1bThH1XfIhdcDYs-ssU

as I see I entered valid NoCapture parameters and published config file. after I cleared the cach with commands :

php artisan cache:clear
php artisan config:cache

But on my form I see image recapture block with error :

ERROR for site owner: Invalid site key

I did not insert any code in my control or in my blade template, as it was not mentioned in docs.

Why error ? Did I miss some options?

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