NIS 20.3.0.36 strange warning

Hello,

 

Each time, since yesterday, I'm trying to open IE 10 on W7 HP 64-bit I have a pop-up from norton that one file has " No reputation available".

Is this something I should worry about?

If I'm not wrong it's a Norton program data entry.

Any advice is very welcome!

Thank you.

Below there's a screenshot.Image