i can't find this file. When i open my gallery 12 for example, media/k2/galleries/12 , there are only photos and nothing else.
I stop trying ...

Don't give up vicky your almost there, just check in plugins settings that you have Default caption (label) handling set to Read content of caption files. Then in the Item delete the existing gallery and upload again.

I am having similar issues in that the thumbnails of my image in sigpro is blank at the backend and front end of my joomla template but when i click on it the image display fully, i have read and apply all suggestions online to the issues but the problem is still there. i desperately need help to resolve this issues. if anyone can, will be much appreciated

Hi olayele,

It looks like jquery conflict, in Gallery Pro's plugin settings try a few different themes & popup setting there's also a few different load jquery option you can try.