By default, LiLi's logs are located in the installation folder C:\Program Files\LinuxLive USB Creator\logs\ (depending on where you installed it).
LiLi creates one log for each day you used it and also one log per crash.
If you are filing a bug report, please attach your latest log file and crash file (if LiLi did crash).
Do NOT paste the text directly in your bug report. Please use the "attach a file" button instead.