error couldnt find core dump file at one place in a map

[Faw[Ful]]

Hi, I convert DM maps into race maps and some of theme have the error couldnt find core dump file to send when I move in my map at one and the same place the error apear :

the error place is allready at the same place in the map, I go or I drive at this place and the error apear, in this map its after the loop :

Its an object in the map im sure, the rotation or another thing cause a problem on a object and the map crash when the object apear, this problem is only for the converted maps, but which object, wich bad writed thing in the .map ?