Open Source Document Management System | OpenKM

I installed the version 4.1 Openkm
And file backup data(version 4.0 ) back into the current operation of all normal
But there is a problem, I use the contents of the search, but could not find the file
I need to adjust anything?

No there's nothing to do upgrade from 4.0 to 4.1 is only chaging war file there's no other change needed.

Explain better how do you found the file in version 4.0 and what are you doing in 4.1 ( which fields you use and what do you put there )