Robustness in fields retrieval

bi_view_editor/models/ir_model.py

@@ -50,6 +50,7 @@ class IrModel(models.Model):
         name = ir_model_field_obj.name
         model = ir_model_field_obj.model_id
         model_name = model.model
+        if model_name[0:6] != 'x_bve.':
             Model = self.env[model_name]
             if name in Model._columns:
                 f = Model._columns[name]