You are a few version behind, 0.11.8 is the newest (but 0.11.7 is recommened because 0.11.8 has a few bugs). You can either update or wait for 0.11.9 on maybe monday or tuesday.
Can you provide a few more infos? (All infos please for you and all other players of the LAN game)
What's you operating system?
Which bit version of Factorio do you use?
What research did you make before it crashed?
Can you provide the log file? Look here if you don't know where to find the log file.
Does this error always appear when the research is finished? Can you upload the savegame if that is the case?