The active jQuery version on your site is 1.6.1. It is one of your plugins (or perhaps the theme itself) disabled jQuery shipped with your WordPress by default and instead an outdated jQuery was loaded from external CDN: https://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js I will explain what it means for you.
But before, I want to point something out: it is a an excellent practice to load JS resources from external CDNs (it can speed up page load time, etc.). But having said that, your website now is restricted to jQuery v1.6.1 only.
A much more flexible and elegant solution here would be to check the jQuery version shipped with WordPress by default, and load THAT jQuery version from external CDN. Using the latter way, it would be ensured that the WordPress eco system uses the same version as the jQuery shipped with WordPress by default.
Now, you are stuck with an outdated library that messes up behavior of plugins (like mine for example) that rely on jQuery shipped with WP by default, because some developer did not want to do extra work and conveniently loaded version that he needed.
I do see that you have included jQuery migrate plugin, but it is not going to work in this case. Before I explain "why", I want to note that I made a typo a couple of posts earlier when I spoke about jQuery Migrate plugin - the migrate plugin should be used when you have jQuery 1.9+:
What jQuery Migrate plugin is ACTUALLY does: it prevents plugins and scripts that are using deprecated functions from breaking when you use jQuery 1.9+. In your case you are using jQuery 1.6.1, so the migrate plugin is of no help here.
The solution I can offer you is:
(a) make sure you are using jQuery 1.9+ by identifying what is loading the outdated jQuery.
(b) If you cannot/do not want/not able to do (a), try using another Google Map plugin because I am not going to make my plugin compatible with jQuery version older than 1.9.
I hope this helps and I apologize for inconvenience.