npc-profiles.yml clears itself everytime I run the server.

[elirev4]

Hello, I have a problem.
Everytime I run the server the content of the file npc-profiles.yml becomes empty.
I don't know what to do...

I already have the old content of the npc-profiles.yml file, and I want to update the new one with it.
But everytime I paste the content on the new npc-profiles.xml file and run the server, the content becomes empty..

Thanx upfront.