SQLite DB for GWT works in web App But not in phone devices, any idea?

I developed a gwt application and I used Hibernate and SQLite as database (with SQLiteDialect) and it works very well.

Now when I put the application on my phone (format .apk) it gives me an error (ALERT Error).

I guess that the problem is that I must add something in RpcDemo.gwt.xml file but I do not know what.

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Any idea ?

Thank you in advance