your has a popup window that appears when hovering...are you sure you are using this lightbox?
If so then make sure all files from previous version are out of the server...open old lightbox and compare folders one by one and get rid of all lightbox items
then open the new lightbox and upload the files from it to the proper folders.
check admin to make sure you do not have more than one entry there for lightbox, if you do then you did not remove the previous version and will need to start from scratch with it.
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