AVS Video Converter Application Problem

Hi,
I have a scenario here that need some solution, while I am converting a video file using AVS, it stopped and displayed an error message, I cannot understand what is stated since its to technical. What Shall I do with this error?

38.01% AVS Video Converter 7.1
Access violation at address 004D18BA in module
'AVSVideoConverter.exe'. Read of address 00000028.
