Thanks for posting your issue, save and dump files would help greatly. For sending save, dump, debug.err files. Would you kindly, submit a ticket via our support system so that I can better assist you with your issue. After following the link, run the support tool, include your steam name, describe the issue you are having and then send us the zip file to greatly speed up the process!
Link to forums for explanation:
Link to support tool:
Here is the location for dmp files:
"C:\ProgramData\Stardock\Galactic Civilizations III"