[FIX] do not fail if consignes tax group does not exist

beesdoo_product/models/beesdoo_product.py

@@ -35,7 +35,8 @@ class BeesdooProduct(models.Model):
     @api.one
     @api.depends('taxes_id', 'list_price', 'taxes_id.amount', 'taxes_id.tax_group_id', 'total_with_vat', 'display_weight', 'weight')
     def _get_total(self):
-        consignes_group = self.env.ref('beesdoo_product.consignes_group_tax')
+        consignes_group = self.env.ref('beesdoo_product.consignes_group_tax', raise_if_not_found=False)
+
         tax_amount_sum = sum([tax._compute_amount(self.list_price, self.list_price) for tax in self.taxes_id if tax.tax_group_id != consignes_group])
         self.total_deposit = sum([tax._compute_amount(self.list_price, self.list_price) for tax in self.taxes_id if tax.tax_group_id == consignes_group])
         self.total_with_vat = self.list_price + tax_amount_sum