elamigosam Light Poster

I have a Google map and a image lightbox slide show in the same page.
After the page loads, the images and the map get loaded.
map works normal.
After I click on the image to make it bigger (lightbox) and then exit, the map is froozed and iresponsive.

here is a link to a fiddle sample of it:
https://jsfiddle.net/elamigosam/jd2hwfcr/61/

I was thinking to renaming all the functions, but not sure if that would do anything.
also no errors in chrome console, and all the files load ok.

P.S. I am not a javascript programer, but do understand basics.