This is a common error. I suspect you're missing a sound file. Check the downloaded zipfile for a separate Sound folder containing one or more files in WAV format. (Not the Sound subfolder of the aircraft itself.) These files should be pasted into your FS2002\Sound folder.

If you tell me exactly where to download this file I can check it out for you.

I found the file but can't duplicate your problem. Sorry.

This error is usually caused by a missing sound file associated with a gauge on the panel. I check out a lot of panels so it's quite likely I already have the missing file(s) installed.

Unless the error message lists the name of the missing file the only way to track it down is by a process of elimination. You can do this by remarking (disabling) the gauge entries in Panel.cfg one by one, trying the aircraft in FS each time.  The most likely culprit is the call-out gauge number 30 under [Window00]

Remark it like this & try it.

// gauge30=FPDA_A320_Callout,  271,433,10

If that's not it try gauge29 & so on until you find it. Unfortunately that will isolate the problem gauge but not the name of the missing sound file.