incase no error means why generation the error log; not required need log file.
same distiller option use other books but not getting any log file. this particular file only getting error.
I think you can simply check the option labeled "Delete Log Files For Successful Jobs" in your Distiller preferences. This will automatically delete the log file after the creation of PDF if no error occurred.
You are right, Luca.
Changing the preferences of Adobe Distiller will work.