@@ -86,12 +86,12 @@
 	 (connection-info (rmt:get-connection-info run-id))
 	 (jparams         (db:obj->string params)))
     (if connection-info
 	;; use the server if have connection info
 	(let* ((dat     (http-transport:client-api-send-receive run-id connection-info cmd jparams))
-	       (res     (if dat (vector-ref dat 1) #f))
-	       (success (if dat (vector-ref dat 0) #f)))
+	       (res     (if (vector? dat) (vector-ref dat 1) #f))
+	       (success (if (vector? dat) (vector-ref dat 0) #f)))
 	  (http-transport:server-dat-update-last-access connection-info)
 	  (if success
 	      (db:string->obj res)
 	      ;; (if (< attemptnum 100)
 	      ;;     (begin