Android: column not found

i'm making my first steps with android and databases. at the moment i have the problem that android keeps telling me that my column doesn't exist and i don't know why.

E/SQLiteLog﹕ (1) table positions has no column named latitude

This is where i create my Database

SQLiteDatabase myDB = null;
    try{
        myDB = this.openOrCreateDatabase(MY_DB_NAME, MODE_PRIVATE, null);
        myDB.execSQL("CREATE TABLE IF NOT EXISTS " + MY_DB_TABLE + " (ID integer primary key autoincrement,name varchar(255),longitude long,latitude long)");            
    }

And this is where i'm trying to add my datas

 myDB = this.openOrCreateDatabase(MY_DB_NAME, MODE_PRIVATE, null);

        ContentValues values = new ContentValues();
        values.put("name", name);
        values.put("longitude",longi);
        values.put("latitude",lati);

        myDB.insert(MY_DB_TABLE,null,values);
        myDB.close();

Hoping to find some help :/