But i delete IC2, and server didnt crashed!
Send you logs?
Whilst this would have been better served in it's own thread, the problem itself is clear enough. Your game has run out of memory, and thus Java needs more allocating to it. You'll have to run with -Xmx4G or however much RAM you want to give it and try running again.
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Mods
Advanced Rocketry
AE2
Better With Engineering
BTWM
BIOMESOPlenty
Brandonscore
car
CHicken ASM
CCL
davincis vessels
Draconic evolution
embers
Ender storage
Energy Converters
Extra cels
EU2
Foamfix anarhy
Forestry
ForgeMultipart
IMmersive Engineering
IMmersive Engineering core
Immersive Petroleum
Immersive Tech
Ironchest
Iron Backpacs
IC2
jei
Lib Vulpes
Mekanism
Mekanism generators
Mekanism tools
movingworld
Nuclear craft2
Reborn Core
Redstone flux
Steve cats2
Survivalist
Tech reborn
MC version 1.12.2
Forge 2705
Sponge Forge
