diff --git a/core/service.go b/core/service.go
index f02fe13..3cc4cd1 100644
--- a/core/service.go
+++ b/core/service.go
@@ -627,9 +627,9 @@ func (sh *serviceDescription) emailinfo(w http.ResponseWriter, r *http.Request)
 	queryvals := r.URL.Query()
 	sk := queryvals.Get("sk")
 
-	authInfo, err := sh.sessionProvider.Query(sk)
-	if err != nil {
-		logger.Println("sessionProvider.Query return err :", err)
+	authInfo := sh.auths.Find(sk)
+	if authInfo == nil {
+		logger.Println(" session key is not valid :", sk)
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}