Basically everything happened when I entered the dimension of "galacticraft extra planets" (Saturn).
Everything was fine, but it was daylight and the mobs started to burn from the sun, but after a while I saw several zombies die and then the server closed.
All attempts to enter the map were useless.
I read the report and apparently it says something related to your mod, so I decided to eliminate it and everything went back to normal.
It is assumed that the mod should only work in the overworld, but for some reason it is taking into account the dimensions added by the galacticraft and its expansion.

Minecraft 1.11.2
forge-1.11.2-13.20.1.2588-universal
EcologyMod-1.11.2-1.0.6.0-beta1
GalacticraftCore-1.11.2-4.0.1.121
MicdoodleCore-1.11.2-4.0.1.121
Galacticraft-Planets-1.11.2-4.0.1.121
ExtraPlanets-1.11.2-0.5.4

Crash Report: https://pastebin.com/raw/b9H0jCbu