Invalid Arg Error message on line 193

Getting an invalid arg foreach() error on line 193
google-maps-builder/public/class-wordpress-google-maps-engine.php

Otherwise everything works as advertised.
I’m a little concerned with all the compatibility issues listed here as I’m using WooCommerce AND Contact7!

I have adjusted the ‘Menu_Position’ in the settings to several different values and tried it with and without a Google Places API key.

Error in this class. Don’t see the argument here so not sure what gives. Maybe see if I can create a new map with a different shortcode and see if that fixes this bug.

class Google_Maps_Builder_Engine {

	/**
	 * Instance of this class.
	 *
	 * @since    1.0.0
	 *
	 * @var      object
	 */
	protected static $instance = null;

	public function __construct() {

		/*
		 * Call $plugin_slug from public plugin class.
		 */
		$plugin            = Google_Maps_Builder::get_instance();
		$this->plugin_slug = $plugin->get_plugin_slug();

		// Filter to automatically add maps to post type content
		add_filter( 'the_content', array( $this, 'the_content' ), 2 );

		//add shortcode support
		add_shortcode( 'google_maps', array( $this, 'google_maps_shortcode' ) );

	}

https://wordpress.org/plugins/google-maps-builder/