layer slider is still using files inside subdomain/subdirectory

hi,
i developed the website using a subdomain and saved the files in a subdirectory. upon completion i moved all the subdomain files to the root directory and now running the site as the main domain.

All seems okay except for the layer slider. it is still showing in my website but under the administration page, i’ve lost the preview image and when you click on each slider you will not see the slides nor the work i put in to it.

Please help