A routine is being called with more arguments than that routine has
parameters. The Z-machine specification allows this, and I am told that
some later Infocom games do this, so it's definitely a bug in ITF.
To stop the ITF interpreter complaining, figure out which routine is at
fault (use the -g option to get function tracing) and give it some extra
parameters. But better would be to get the ITF interpreter fixed.
-- Gareth Rees