problem with Yobgul's Converter

i used Gmax to make a modewl, then i exported it into an mdx document. Them , i opeed up Yobgul's converter, and tried to change it to an mdx, but i got this message:

Error reading model file:

Error (line1) Unexpected Token "(picture of a square)1/2"


wat does this mean? if anyone knows, plez help!