J'arrive pas a remplir ma base de donnee avec python

from tkinter import *
import sqlite3

def base():
    X1=Champ1.get()
    X2=Champ2.get()
    X3=Champ3.get()
    X4=Champ4.get()
    X5=Champ5.get()
    X6=Champ6.get()
    V=X1,X2,X3,X4,X5,X6
    conn = sqlite3.connect('bd.db')
    cur = conn.cursor()
    cur.execute('INSERT OR REPLACE INTO INSCRIPTION VALUES(?,?,?,?,?,?)',V)
    conn.commit()
    conn.close()

Mafenetre2 = Tk()
Mafenetre2.title('INSCRIPTION')
    
Lbl1 = Label(Mafenetre2, text = 'Nom ')
Lbl1.grid(row=1, column=1)

Champ1 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ1.focus_set()
Champ1.grid(row=1, column=2)

Lbl2 = Label(Mafenetre2, text = 'Post-nom ')
Lbl2.grid(row=3, column=1)

Champ2 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ2.focus_set()
Champ2.grid(row=3, column=2)

Lbl3 = Label(Mafenetre2, text = "Nom d'utilisateur ")
Lbl3.grid(row=5, column=1)

Champ3 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ3.focus_set()
Champ3.grid(row=5, column=2)

Lbl4 = Label(Mafenetre2, text = 'Adresse mail ')
Lbl4.grid(row=7, column=1)

Champ4 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ4.focus_set()
Champ4.grid(row=7, column=2)

Lbl5 = Label(Mafenetre2, text = 'Annee de naissance ')
Lbl5.grid(row=9, column=1)

Champ5 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ5.focus_set()
Champ5.grid(row=9, column=2)


Lbl6 = Label(Mafenetre2, text = 'Mot de passe')
Lbl6.grid(row=11, column=1)

Champ6 = Entry(Mafenetre2, bg ='bisque', fg='maroon')
Champ6.focus_set()
Champ6.grid(row=11, column=2)



    
Btn = Button(Mafenetre2, text ='Valider',command=base)
Btn.grid(row=13, column=2)


Mafenetre2.mainloop()