Your webhost is not serving up anything from the images folder. Either the images folder hasn't been uploaded, or the permissions for this folder don't allow public viewing. If you've uploaded the images folder, you may just need to set the file permissions on the images folder. Check the documentation for your FTP client for how to set file permissions.
Thanks Adobelance for your reply,
I am hosted with 123-reg.co.uk
I reset the permissions for my Images Folder but it didn't work.
The solution was to delete the existing folder and upload it again having checked the asset links in Muse. It is now working perfectly.
Thanks for the help