I tried as you suggested, but $row_rsSubscribers['ColumnName'] does not occur in webassist/email/waue_index_4.php
I have attached my file webassist/email/waue_index_4.php (sorry, i should have posted that earlier) for your reference.
There was one instance of $row_rsSubscribers['ColumnName'] in the file (index.php) that contains the form and server behavior for UE. So I tried to replace that piece of code, but it did not fix the problem.
Any further suggestions/help is very much appreciated!!!