DASP MS SQL backup question

I have installed the backup tool that uses the control panel api for backup of our MS SQL 2012 db.
The tool from pfsolutions-mi.com has a nice user interface and I got this working fine the first time. However, on subsequesnt backups there is a problem with the bak file already being present in the _database folder.

Should not the tool change the name or delete, once ftp to my local PC? Is this a known problem or am I doing something wrong. Here is the error message.

Error:

Data: System.Collections.ListDictionaryInternal

HelpLink:

InnerException:

Message: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> Dasp.CustomerAPI.Web.UserErrorException: Backup failed. File with the same name already exists.

at Dasp.CustomerAPI.Web.CustomerApi.Sql2012CreateBackup(String key, String databaseName)

--- End of inner exception stack trace ---

Source: mscorlib

TargetSite: Void HandleReturnMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessage)

StackTrace:


Server stack trace:

at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)

at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)

at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)

at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)


Exception rethrown at [0]:

at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)

at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)

at DSB.Service.DiscountASP.CustomerApiSoap.Sql2012CreateBackup(String key, String databaseName)

at DSB.Service.ProcessDASP.CreateSqlBackup(String backupType, String databaseName)

at DSB.Service.DSBAccount.CreateSqlBackup()

at DSB.Service.DSBAccount.Execute()