Problems with image displaying when using mouse over

[skopeo]

When I do a mouse over in the category pages, sometimes the images that are displayed are images that I do not have in my database and not the ones that I want to be displayed. 

 

I have read the various threads about mouse over and my problem seems to be different.  Here is the link to a page where you can see the problem occurring on items coconut, performer men an performer women:

 

http://www.laboutiquedesecoles.net/fr/33-eivp-paris

 

Thanks for your help,

 

Gilles