Yes, you can make the changes to Preferences.xml
It will require using VI . Hope you’re ok with that. 
via SSH,
PMS stopped
cd "/var/packages/PlexMediaServer/home/Plex Media Server"
vi Preferences.xml
On that last XML line, before the closing />, add
sendCrashReports="0"
It will look like this when done
SomePref="Value" sendCrashReports="0" />
Save and exit
Start PMS & let it crash
Start it again & let it crash
Now you’ll find the DMP file in your Logs shared folder.
