ty 4 quick answer, but after going back and forth between .17 and .18 and removing stuff i discovered that removing the galacticraft machines that i had placed in the world fixed my problem
EDIT: on the other hand i placed back a stirling generator and everything was ok until i placed a single ender io energy conduit. For what i read arround smth i wrong w/ the buildcraft API
EDIT2: Something is changed about how ender io conduits work. If u place a "new" conduit in the same place where a old one was to make a "bundle" the game crashes. if u remove all of them and place them back, seems like everything is ok
EDIT3: Sometimes work just fine, but when i placed a conduit next to an "old" placed machine, crash again. imma try to do some more tests and ill let ppl know if i can manage to find out what the heck is happening
You might have to break and repalce the generator
I also had the server crashing on launch after the update 1.1.18. I had to break every RF generating/consuming/conducting block, then do the update . I also updated Ender IO to latest. Now its working.