295246 Autoresponder Script Problem

We run a free autoresponder service using Gossamer AutoRespond Script. We have a regular user account set up for use with the form on the main website. For the last couple of weeks, the user profile information keeps changing automatically. It changes the email address, address, city, state, phone, etc. automatically. We log in and change it back and the next day it has changed again. It changes to the profile of another autoresponder user and seems to be random. Need someone to find out what is causing this and fix it.