I am experiencing a similar issue with the map load error returning me to the main menu. I cannot load into Hasongo and progress the main quest.
I have placed the savegame of my ship outside of Hasongo, system specs, and output log into Dropbox @ https://www.dropbox.com/s/otl8drilhdssmrs/deadfire_troubleshooting.zip?dl=0
Thank you for your time~