Error magic zoom

After upgrading to Business+ so i can use multi sites the new sites will not allow more than one zoom image. i receive an error saving AutoScaledImages/mzm_5a5739d5cb71d48c802e and no thumbnails show

http://www.bbc-semisom-pumps-online....4.html#SID=212

Andy at coepath created the site but he cannot see what the problem is.

Can anyone assist ?