FB super server v 2.1.1.17910

I have a windows server failure and had to move the FB server to a new
box. I use external tables to write logs and their disk location has
changed.

I need to tell the server where the new external tables reside, however
when I try to do this:

Alter table Log_Table
EXTERNAL 'e:\...\...\Log_Table.txt'

i get an error about not recognizing the token EXTERNAL.

How can I tell the FB server when to locate these tables now?

Rick