GalacticraftCore{3.0.12} [Galacticraft Core] (GalacticraftCore-1.7-3.0.12.504.jar)
GalacticraftMars{3.0.12} [Galacticraft Planets] (Galacticraft-Planets-1.7-3.0.12.504.jar)
ExtraPlanets{1.7.10-2.1.1} [Extra Planets] (ExtraPlanets-1.7.10-2.1.1.jar)
are reported as "errored", move them all into a separate folder to confirm they are the problem, if the server doesnt crash tehy are the problem, try adding them individually first try just galacticraftcore then galacticraftcore + galacticraft mars and then extraplanets, if you crash at galacticraft core (Im pretty sure) (it cannot load crafting recipes for some reason, idk why), maybe you are using the wrong version of the mod. If you can't find the problem yourself you will have to remove galacticraft.