Hi,
I can't be sure about where's the issue (client code vs library code) so we should investigate it a little more.
Check all of your removeTable calls and add a check using getTable before them
http://www.lightstreamer.com/docs/client_html_jsdoc/PushPage.html#getTable
let's see if you can isolate the problem on your side.
Anyway, is the table name reported exactly "tableName"?