We have a system developed on Professional Allegro Common Lisp Version
5.0.1., on GBB version 4.1.   It was developed by an outside vendor, but
we would like to understand it more, since it it is currently in
production and is crashing sometimes, and we do not have too much
insight in what is going on.

We have the source files in a development environment and we have used
the profiler which gave us some information.

This is my question: Is there any tool/ function I can use it at runtime
to show me exactly what the program is doing at any point? The system
has an interactive interface that takes user requests, process them
through a series of rules and constraints and, with that information,
updates a database and notify users of the results.

The vendor has provided us with an "object browser" at run time, where
we can run scripts and inspect objects. Do you have any suggestions?

Thanks!

Olga Doldan White