function tec_tickets_wallet_plus_show_fail_message( string $message = null ) {
	if ( ! current_user_can( 'activate_plugins' ) ) {
		return;
	}

	tec_tickets_wallet_plus_load_text_domain();


	if ( null === $message ) {
		$url = 'plugin-install.php?tab=plugin-information&plugin=event-tickets&TB_iframe=true';

		$message = sprintf(
			'%1s <a href="%2s" class="thickbox" title="%3s">%3$s</a>.',
			esc_html__(
				'To begin using Event Tickets Wallet Plus, please install the latest version of',
				'event-tickets-wallet-plus'
			),
			esc_url( $url ),
			esc_html__( 'Event Tickets', 'event-tickets-wallet-plus' )
		);
	}

	// The message HTML is escaped in the line above.
	echo wp_kses_post( '<div class="error"><p>' . $message . '</p></div>' );
}