I blocked a creeper explosion with my shield (in the last second before it explodes) and the game froze just before the explosion. After a restart it says the mod couldn't load properly. After a second restart it works again.

I attached the log file of the first restart.
There is no valuable information about this crash in the log file before that. It just ends at me taking a screenshot which was a few minutes before that happened.
2020-03-21-3.log

Here is what I saw in the log:

[21Mar2020 02:12:26.074] [Client thread/FATAL] [net.minecraftforge.fml.ModLoader/CORE]: Error during pre-loading phase
net.minecraftforge.fml.ModLoadingException: Mod §eenhancedvisuals§r requires §6creativecore§r §o2.0.0 or above§r

When you say restart, you mean from scratch? I suspect it is somehow related to enhanced visuals. I don't see anything specific to my mods.

Oh I didnt see that in the log but Creative Core is installed.
If you mean from scratch make a new pack then no I didn't try that. I just force closed the game and then started the launcher again and start the game.
Well I can't really provide any other log.
The only hint I got is Forge telling me in the loading phase that MobEffects is not able to load.

Looking at the timestamp of that fatal that was way before the crash occured. That was when i just added Enhanced Visuals and forgot to add CreativeCore. So not related at all to the problem.
I opened this issue right after I encountered it so it should be at a timestamp around 04:15:00-04:20:00

latest.log
Im gonna put the latest.log in here too, since I noticed the log I sent isn't even getting close to the time the crash happened.
This log starts at the second restart.

Ok sorry for spamming this but I dug a bit more into the log files and found out that the numbering is a bit weird

So here is the log file of the first restart:
2020-03-21-1.log

And here is the log file from before the crash (this log doesnt hold any useful information tho - there was also no crash report created):
2020-03-21-2.log

Saw this in the latest.log reported due to activity from enhanced visuals:

[21Mar2020 04:43:01.463] [Client thread/ERROR] [net.minecraftforge.fml.common.ObfuscationReflectionHelper/REFLECTION]: Unable to locate field sndManager (sndManager) on type net.minecraft.client.audio.SoundHandler

This is from the first restart log and is reported from the core mod framework that is bundled with Forge - not sure why it is reporting it:

[21Mar2020 04:22:11.588] [modloading-worker-2/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/LOADING]: Failed to register automatic subscribers. ModID: mobeffects, class org.orecruncher.mobeffects.MobEffects

What I see in the client log before the crash. Not sure if it is related, some other issue, or just something spurious:

[21Mar2020 02:15:55.389] [Server thread/INFO] [STDERR/]: [com.mamiyaotaru.voxelmap.forgemod.WorldIDPacket:decode:45]: Failed to read message: java.lang.IndexOutOfBoundsException: readerIndex(2) + length(42) exceeds writerIndex(3): UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 2, widx: 3, cap: 256)

Something strange from OptiFine about shields:

[21Mar2020 02:21:31.064] [Server thread/WARN] [net.optifine.Config/]: [OptiFine] *** Exception outside of method ***
[21Mar2020 02:21:31.064] [Server thread/WARN] [net.optifine.Config/]: [OptiFine] Method deactivated: public default boolean net.minecraftforge.common.extensions.IForgeItemStack.isShield(net.minecraft.entity.LivingEntity)

Have you tried without OptiFine?

I don't know if I can get any results when trying without optifine. I tried replicating this behaviour multiple times but without success (with optifine).
This also hasn't happened since that first freeze/crash.

OK - keep an eye out on it. It's possible that Forge lost its mind some how.

Alright. I'm gonna close this just in case it never happens again (I'm also not playing MC that often)