Map doesn't show on Add Listing. And text glitch

Hi,

I cleared my cache today and since then I have had problems on my Add Listing form. As you will see on the attached screen shot, the map doesn’t show on the front end ‘Add Listing’ page and there is some strange text appearing (highlighted blue). The map works fine on the other pages of the site.
I’m not sure if this is related but my events calendar also stopped working on my home page today (screen shot attached).

Is there anything you can do to help? I am a beginner here and this is my first problem. I haven’t made any code changes at all. I have tried a few plug ins though.

Thanks
Paula