Msg 102, Level 15, State 1, Procedure insertRetailer, Line 24 Incorrect syntax near ','

Msg 102, Level 15, State 1, Procedure insertRetailer, Line 24 Incorrect syntax near ','.

>SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:      <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE PROCEDURE [dbo].[insertRetailer]
    -- Add the parameters for the stored procedure here
    @RetailerId bigint output,
    @Name varchar(255),
    @Pin char (4),
    @EmailAdress varchar(255),
    @MonthlyOrderLimit numeric(10,2),
    @DiscountPercentage numeric(2,2),
    @URL varchar(255)

AS
BEGIN

Does anybody know how to solve this error?