Map Doesn’t Render Properly after Optimization

I recently used LiteSpeed Cache for media and page optimization on the site to help page speed and PageSpeed Insights score. The results are very hit-or-miss (varying every time we pull a report). However, the main issue is that since doing this, the map we use on both the home page and projects page do not render correctly.
The size in which it loads changes (sometimes it is cut off, other times it is full) and the zoom in/out buttons on the top right corner never load up anymore. It always just shows blank tiles.
Any ideas on how to fix this?

The page I need help with: [log in to see the link]