id, 'ait-airce' ) === false ) { return; } $api_key = AIT_AIRCE_Settings::get( 'openai_api_key' ); if ( empty( $api_key ) ) { echo '

'; echo esc_html__( 'AI Related Content Engine: Please enter your OpenAI API key in Settings to enable indexing.', 'ait-ai-related-posts' ); echo '

'; } } }