Sqlite3 is readonly on webserver?

[Wolf86]

I install sqlite db manager on visual studio and create my database.I added this db file to "app_data > myDB" (no ext.)It works perfect on visual studio using debug mode.But when i publish this project to web , my data is getting from db perfectly also my update button is working and saying its done !Unfourtunately when i refresh page come back my old data , its not changed.