speed-up problem

[BlazeWizard]

every time i speed up the game by fast-forwarding time, i get a fatal error
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NEW GAME     22:40, 6/6/2003
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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:\Program Files\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
Loading profile from C:\Program Files\Uplink\users/BlazeH4X0R.usr...HUDInterface::HighlightToolbarButton, invalid button : hud_message 0
success
Loading LAN from data/lans/sample.txt...[Already Loaded]
Saving profile to C:\Program Files\Uplink\users/BlazeH4X0R.usr...success

An Uplink Assertion Failure has occured
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Condition : target
Location  : C:\Development\Uplink\source\world\generator\secure\plotgenerator-sc.cpp, line 6492
============== B E G I N  C O R E  D U M P =================
retAddress = 004CCCD3
============== E N D  C O R E  D U M P =====================
anyway to fix this? i need to speed up, since i need more missions.