V25, Error importing Data in Custom Fields

Hello All,

I am using Gibbon from sometime.Being a beginner I am facing a problem which I unable to resolve . I need help in importing files for Custom field created , by Following the thread comments in the community , I still got no luck.If any one can help to resolve the problem , it would be great.Thanks in advance.
I am attaching screenshots of my screen -Error report while importing .
I am using version 25 Gibbon.

Om Verma