Error upon character access

[Mitchus]

Whenever I go to access my charcater i get a fatal error message telling me to check my debug.log and email it in. I checked the log and this is what it says:

===============================================
NEW GAME     23:33, 4/6/2003
===============================================
Version : 1.31
RELEASE
Win32 Build
Version 1.31 (RELEASE)
Compiled on Sep  9 2002 at 16:53:38
(code-C)(code-M)(code-T)
Loading uplink options from C:\uplink\users/options...success

Successfully loaded data archive data.dat
Successfully loaded data archive graphics.dat
Successfully loaded data archive loading.dat
Successfully loaded data archive sounds.dat
Successfully loaded data archive music.dat
Successfully loaded data archive fonts.dat
Successfully loaded data archive patch.dat

An Uplink Assertion Failure has occured
=======================================
Condition : file
Location  : C:\Development\Uplink\source\uplink.cpp, line 424
============== B E G I N  C O R E  D U M P =================
retAddress = 004CCCD3
retAddress = 004D6A43
============== E N D  C O R E  D U M P =====================

What could be the problem and can it be fixed?