Instead of asking the relevant question and providing details when asked for your problem, you are just keep on opening new threads for the same issue. Do understand that this is not the right approach to ask a question and you are just making it more and more difficult for the volunteers to provide any help because of this behavior of yours.
Just to remind you, you have asked the same question 4 times already
For the last time, most likely, you have a problem in your application code. So do a through check of it. Second thing, you are using a very old release of Oracle database and that too is unpatched. If its a production database, get your db upgraded to a supported release-at least to 11.2 .