So you do maps? Maybe one of the reasons why you are crashing is because you may have a double particle. You can tell if you have a double particle if you go to Local Disk (C:) >> Feral Heart >> Media >> Particles and then check for the double particle and delete the duplicate. Sometimes people crash and that's Totally normal if the server is full, or if we have a server restart. Again totally normal. If you have maps you don't want to lose, then before re downloading FH re-name your FH folder 'Feral Heart 2' and then re install FH. Then from 'Feral Heart 2', put your exports folder into the new Feral Heart folder and replace. Same with items.cfg & markings.cfg, they go straight into the Feral Heart folder. Things like Textures, Objects and the items folder go into Feral Heart >> Media. Just in case you don't want to lose any times and stoof. Also, try searching for duplicates in your sky folder too. That maybe another reason.
Well, I hoped I helped you in some way.