where can i find mount and blade modules folder?
in C:\programsx86\mount&blade there isn't that folder

AFAIK, it should be in your ...\Mount&Blade\ folder. If you can't find it, open your M&B folder and search for "Native". If it wouldn't be there, it'd mean that you can't play even original (because there would be no original files). :)

By default the GOG version saves into a GOG Games folder in your program files folder. It's possible that the directory you mentioned is a secondary one that the game created upon install unless you designated it yourself. I can't check because I'm running it on Mac but have a look to see if there is more than one Mount&Blade folder on your C drive.

As Helpo1 stated, if this is the primary M&B folder then you should not be able to run the game at all.