debug assertion failed

[leiryll]

good day! Guys

i need a help regarding with this dialog box that pop after i click this application: this what ive got

debug assertion failed

Program: c:\programfiles.....INGATS.exe
File: afx.inl
line: 122

for information on how your program can cause an assertion failure, see the visual c++ documentation on asserts....


what does it means? if somebody knows how to fix this i really need your help

and my stuff specs:
OS: winxp SP2
celeron, 512 RAM


thanks