Thank you very much for reporting your problem!
Please download this debug version:
http://www.coollector.com/Coollector_Debug.zipUnzip it where Coollector.exe is located, and use it instead of Coollector.exe. When you'll make it crash, this debug version will generate a crash dump.
Please email me the 2 files of the crash dump at this address:
hector at coollector dot comIf you help me fix this crashing bug, I'll give you a free license