My WordPress plugin displays 'invalid key type' for reCAPTCHA. What should I check first?

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Grade: Education Subject: Support
My WordPress plugin displays 'invalid key type' for reCAPTCHA. What should I check first?
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First, verify which reCAPTCHA version your plugin is configured to use (v2 or v3). Then, go to your Google reCAPTCHA admin console and ensure you have generated the correct Site Key and Secret Key for that specific version. Copy and paste these keys accurately into your plugin's settings in WordPress, being careful to avoid extra spaces or characters.