fix field verification

models/whatsapp_message.py

@@ -35,7 +35,7 @@ class WhatsAppMessage(models.Model):
             if 'marketing.trace' in self.env:
                 marketing_traces = self.env['marketing.trace'].sudo().search([('whatsapp_message_id', '=', whatsapp_message.id)])
                 for marketing_trace in marketing_traces:
-                    if marketing_trace.activity_id.x_studio_grupo_whatsapp:
+                    if 'x_studio_grupo_whatsapp' in marketing_trace.activity_id and marketing_trace.activity_id.x_studio_grupo_whatsapp:
                         group = marketing_trace.activity_id.x_studio_grupo_whatsapp.x_studio_destinatario
 
             if 'x_notificaciones_whats' in self.env and not group: