bigfix for nil entity

crmLead.go

@@ -95,7 +95,9 @@ func crmFindLeadByOpenID(openID string) (info crmdLead, found bool, err error) {
 
 func crmGetLead(id string) (r crmdLead, err error) {
 	entity, err := crmGetEntity("Lead", id)
-	r = entity.(crmdLead)
+	if err == nil && entity != nil {
+		r = entity.(crmdLead)
+	}
 	return
 }