Widget shows up blank, javascript error?

Hi, need some support on this issue. Any idea how to fix this? Do I need to add something into my header file to enable the javascript?

Most likely it’s a conflict with another plugin. Have you disabled all plugins to make sure? What’s the URL to your site so I can see and check for errors?

I’m having the same problem. I just moved a site. It worked before, now doesn’t.

https://freemove.co.uk/101london/

Any idea on how to fix it? thank you!

Have you checked your widget settings? It is not outputting any testimonials.