Android SQLite issue: 'Table [...] has no column named' error

I keep getting error that a column in my table cannot be found. Cannot figure out why this is happening. The column names appear to be spelled correctly.

I'm getting this error : 06-11 21:27:02.701 3703-3703/com.example.luca.contatti E/SQLiteLog﹕ (1) table Contatti has no column named imageUri

This is my DatabaseHandler page:

public class DatabaseHandler extends SQLiteOpenHelper {
    public static final String DB_NAME = "dbContatti",
        TABLE = "Contatti",
        ID = "id",
        NAME = "name",
        PHONE = "phone",
        EMAIL = "email",
        ADDRESS = "address",
        IMAGEURI = "imageUri";
public static final int DB_VERSION = 4;

public DatabaseHandler(Context context) {
    super(context, DB_NAME, null, DB_VERSION);
}


@Override
public void onCreate(SQLiteDatabase db) {
    //Creazione della tabella per il DB
    db.execSQL("CREATE TABLE " + TABLE + "(" + ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + NAME + "TEXT," + PHONE + "TEXT," + EMAIL + "TEXT," + ADDRESS + "TEXT," + IMAGEURI + "TEXT " + ")");

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXISTS " + TABLE);

    onCreate(db);
}

// CRUD: CREATE

public void createContact (ContactList contact){
    SQLiteDatabase db = getWritableDatabase();

    ContentValues values = new ContentValues();

    values.put(NAME, contact.getName());
    values.put(PHONE, contact.getPhone());
    values.put(EMAIL, contact.getEmail());
    values.put(ADDRESS, contact.getAddress());
    values.put(IMAGEURI, contact.getImageUri().toString());

    db.insert(TABLE, null, values);
    db.close();
}

//CRUD: READ

public ContactList getContact(int id){
    SQLiteDatabase db = getReadableDatabase();

    Cursor cursor = db.query(TABLE, new String[] {ID, NAME, PHONE, EMAIL, ADDRESS, /*IMAGEURI*/}, ID + "=?", new String[] {String.valueOf(id)},null,null,null,null );

    if (cursor != null)
        cursor.moveToFirst();

    ContactList contact = new ContactList(Integer.parseInt(cursor.getString(0)),cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4), Uri.parse(cursor.getString(5)));
    db.close();
    cursor.close();
    return contact;
}

//CRUD: UPDATE

public int updateContact(ContactList contact){
    SQLiteDatabase db = getWritableDatabase();

    ContentValues values = new ContentValues();

    values.put(NAME, contact.getName());
    values.put(PHONE, contact.getPhone());
    values.put(EMAIL, contact.getEmail());
    values.put(ADDRESS, contact.getAddress());
    values.put(IMAGEURI, contact.getImageUri().toString());

    return db.update(TABLE, values, ID + "=?", new String[] { String.valueOf(contact.getId()) });
}

//CRUD: DELETE

public void deleteContact(ContactList contact){
    SQLiteDatabase db = getWritableDatabase();

    db.delete(TABLE, ID + "=?", new String[] {String.valueOf(contact.getId())});
    db.close();
}

public int getContactsCount(){
    SQLiteDatabase db = getReadableDatabase();

    Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE, null);
    int count = cursor.getCount();
    db.close();
    cursor.close();
    return count;
}

public List<ContactList> getAllContacts(){
    List<ContactList> contacts = new ArrayList<ContactList>();

    SQLiteDatabase db = getWritableDatabase();
    Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE, null);

    if(cursor.moveToFirst()){
        do {
            ContactList contact = new ContactList(Integer.parseInt(cursor.getString(0)),cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4), Uri.parse(cursor.getString(5)));
            contacts.add(contact);
        }
        while (cursor.moveToNext());
    }
    return contacts;
}
}

Also when i remove this statement:

values.put(IMAGEURI, contact.getImageUri().toString());

I've problem with other statements.

What can i do for fix this problem? Please help me!!