public function render_html_error_email( $exception, CssToInlineStyles $inliner = null ) {
		$plates = _soter_instance( 'plates' );
		$html = $plates->render( 'emails/html/error.php', [
			'message' => $exception->getMessage(),
		] );
		$css = $plates->render( 'emails/style.css' );
		$inliner = $inliner ?: new CssToInlineStyles();

		return $inliner->convert( $html, $css );
	}