WPMU DEV , theme Broden

Dears,

Few days ago I started using the free trial of WPMU DEV. It started compressing the images on my site and now a lot of images are not there any more: We cannot complete this request, remote data could not be fetched.

Do you have any idea what can be the problem, also is there a back up so I can get back my images on the site?

Looking forward for your response.

Kind Regards,
Kristina