java.lang.NullPointerException: Cannot invoke "net.minecraft.class_2680.method_26204()" because the return value of "net.minecraft.class_3610.method_15759()" is null
at reborncore.common.fluid.FluidUtils.getFluidName(FluidUtils.java:187)
at techreborn.items.DynamicCellItem.method_7864(DynamicCellItem.java:170)
at net.minecraft.class_1799.method_7964(class_1799.java:622)
at net.minecraft.class_1799.method_7950(class_1799.java:659)
at net.minecraft.class_310.method_1485(class_310.java:770)
at net.minecraft.class_1126.method_4795(class_1126.java:36)
at net.minecraft.class_1121.method_4798(class_1121.java:48)
at net.minecraft.class_310.method_1535(class_310.java:783)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at net.minecraft.class_310.method_1546(class_310.java:782)
at net.minecraft.class_310.(class_310.java:576)
at net.minecraft.client.main.Main.main(Main.java:199)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:416)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:77)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Render thread
Stacktrace:
at reborncore.common.fluid.FluidUtils.getFluidName(FluidUtils.java:187)
at techreborn.items.DynamicCellItem.method_7864(DynamicCellItem.java:170)
at net.minecraft.class_1799.method_7964(class_1799.java:622)
at net.minecraft.class_1799.method_7950(class_1799.java:659)
at net.minecraft.class_310.method_1485(class_310.java:770)
at net.minecraft.class_1126.method_4795(class_1126.java:36)
at net.minecraft.class_1121.method_4798(class_1121.java:48)
at net.minecraft.class_310.method_1535(class_310.java:783)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at net.minecraft.class_310.method_1546(class_310.java:782)
at net.minecraft.class_310.(class_310.java:576)

-- System Details --
Details:
Minecraft Version: 1.18.1
Minecraft Version ID: 1.18.1
Operating System: Windows 10 (amd64) version 10.0
Java Version: 17.0.1, Microsoft
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
Memory: 6020019720 bytes (5741 MiB) / 8162115584 bytes (7784 MiB) up to 8162115584 bytes (7784 MiB)
CPUs: 16
Processor Vendor: GenuineIntel
Processor Name: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
Identifier: Intel64 Family 6 Model 158 Stepping 13
Microarchitecture: Coffee Lake
Frequency (GHz): 3.60
Number of physical packages: 1
Number of physical CPUs: 8
Number of logical CPUs: 16
Graphics card #0 name: NVIDIA GeForce RTX 2070 SUPER
Graphics card #0 vendor: NVIDIA (0x10de)
Graphics card #0 VRAM (MB): 4095.00
Graphics card #0 deviceId: 0x1e84
Graphics card #0 versionInfo: DriverVersion=30.0.14.7212
Memory slot #0 capacity (MB): 8192.00
Memory slot #0 clockSpeed (GHz): 3.20
Memory slot #0 type: DDR4
Memory slot #1 capacity (MB): 8192.00
Memory slot #1 clockSpeed (GHz): 3.20
Memory slot #1 type: DDR4
Memory slot #2 capacity (MB): 8192.00
Memory slot #2 clockSpeed (GHz): 3.20
Memory slot #2 type: DDR4
Memory slot #3 capacity (MB): 8192.00
Memory slot #3 clockSpeed (GHz): 3.20
Memory slot #3 type: DDR4
Virtual memory max (MB): 56251.00
Virtual memory used (MB): 34497.93
Swap memory total (MB): 23552.00
Swap memory used (MB): 1648.79
JVM Flags: 6 total; -XX:+UseG1GC -XX:-UseAdaptiveSizePolicy -XX:-OmitStackTraceInFastThrow -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmn256m -Xmx7782m
Fabric Mods:
ae2: Applied Energistics 2 10.1.0-beta.3
appleskin: AppleSkin 2.3.0+mc1.18.1
architectury: Architectury 3.8.51
bclib: BCLib 1.3.5
betterf3: BetterF3 1.2.2
betternether: Better Nether 6.0.11
cardinal-components-base: Cardinal Components API (base) 4.0.1
cardinal-components-entity: Cardinal Components API (entities) 4.0.1
cloth-basic-math: cloth-basic-math 0.6.0
cloth-config: Cloth Config v6 6.2.57
fabric: Fabric API 0.46.6+1.18
fabric-api-base: Fabric API Base 0.4.2+d7c144a865
fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.5.3+d7c144a865
fabric-biome-api-v1: Fabric Biome API (v1) 6.0.2+d7c144a865
fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.10+3ac43d9565
fabric-command-api-v1: Fabric Command API (v1) 1.1.7+d7c144a865
fabric-commands-v0: Fabric Commands (v0) 0.2.6+b4f4f6cd65
fabric-containers-v0: Fabric Containers (v0) 0.1.19+d7c144a865
fabric-content-registries-v0: Fabric Content Registries (v0) 0.4.9+d7c144a865
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.9+3ac43d9565
fabric-dimensions-v1: Fabric Dimensions API (v1) 2.1.10+a1d9bbf565
fabric-entity-events-v1: Fabric Entity Events (v1) 1.4.6+d7c144a865
fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.4.17+d7c144a865
fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.9+d7c144a865
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.11+d7c144a865
fabric-item-api-v1: Fabric Item API (v1) 1.3.1+691a79b565
fabric-item-groups-v0: Fabric Item Groups (v0) 0.3.7+3ac43d9565
fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.9+d7c144a865
fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.7+b4f4f6cd65
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 1.4.13+713c266865
fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.0.9+d7c144a865
fabric-mining-level-api-v1: Fabric Mining Level API (v1) 1.0.7+d7c144a865
fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.12+b4f4f6cd65
fabric-models-v0: Fabric Models (v0) 0.3.4+d7c144a865
fabric-networking-api-v1: Fabric Networking API (v1) 1.0.19+d7c144a865
fabric-networking-v0: Fabric Networking (v0) 0.3.6+b4f4f6cd65
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 1.11.5+737332ce65
fabric-object-builders-v0: Fabric Object Builders (v0) 0.7.13+d7c144a865
fabric-particles-v1: Fabric Particles (v1) 0.2.10+526dc1ac65
fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.9.2+ad01bfbd65
fabric-renderer-api-v1: Fabric Renderer API (v1) 0.4.11+b0b66fc365
fabric-renderer-indigo: Fabric Renderer - Indigo 0.4.15+6825030165
fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 3.2.10+b4f4f6cd65
fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.3.5+d7c144a865
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.19+3ac43d9565
fabric-rendering-v0: Fabric Rendering (v0) 1.1.12+b4f4f6cd65
fabric-rendering-v1: Fabric Rendering (v1) 1.10.6+713c266865
fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 1.0.2+d7c144a865
fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.4.15+8906aafd65
fabric-screen-api-v1: Fabric Screen API (v1) 1.0.8+d7c144a865
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.1.12+d7c144a865
fabric-structure-api-v1: Fabric Structure API (v1) 2.1.3+d7c144a865
fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 1.2.9+d7c144a865
fabric-textures-v0: Fabric Textures (v0) 1.0.10+3ac43d9565
fabric-tool-attribute-api-v1: Fabric Tool Attribute API (v1) 1.3.9+fb3b57b465
fabric-transfer-api-v1: Fabric Transfer API (v1) 1.5.10+c329913d65
fabricloader: Fabric Loader 0.13.3
fallingtree: FallingTree 3.2.1
ic2: Industrial Craft 2 2.9.70+ex118
identity: Identity 1.16.0-1.18.1
java: OpenJDK 64-Bit Server VM 17
journeymap-api-fabric: JourneyMap API 1.18.1-1.8-fabric-SNAPSHOT
journeymap-fabric: Journeymap 5.8.1
mcwdoors: Macaw's Doors 1.0.6
minecraft: Minecraft 1.18.1
mm: Manningham Mills 2.3
modmenu: Mod Menu 3.0.1
mousetweaks: Mouse Tweaks 2.22
nullscape: Nullscape for Fabric 1.1
omega-config: OmegaConfig 1.0.4
optifabric: OptiFabric 1.13.0
playerabilitylib: Pal 1.5.0
reborncore: Reborn Core 5.1.0
seamless_loading_screen: Seamless Loading Screen: Refabricated 2.0+1.18.1
seedfix: Seed Fix 1.0.0
skinlayers: 3d Skin Layers 1.4.3-mc1.18.2
team_reborn_energy: Energy 2.2.0
techreborn: Tech Reborn 5.1.0
torohealth: ToroHealth Damage Indicators 1.18-fabric-2
yuushya: Yuushya Beta-0.10.2
Launched Version: 1.18.1-VOID-GC
Backend library: LWJGL version 3.2.2 build 10
Backend API: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2 GL version 3.2.0 NVIDIA 472.12, NVIDIA Corporation
Window size:
GL Caps: Using framebuffer using OpenGL 3.2
GL debug messages:
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
CPU: 16x Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
OptiFine Version: OptiFine_1.18.1_HD_U_H6
OptiFine Build: 20220324-210209
Render Distance Chunks: 12
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: SEUS PTGI HRR Test 2.1.zip
OpenGlVersion: 3.2.0 NVIDIA 472.12
OpenGlRenderer: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 16

-- OptiFabric --
Details:
OptiFine jar designed for: 1.18.1
OptiFine jar version: OptiFine_1.18.1_HD_U_H6
OptiFine jar status: Valid OptiFine installer
OptiFine remapped jar: E:/MC/VOIDClient/.minecraft/versions/1.18.1-VOID-GC/.optifine/OptiFine_1.18.1_HD_U_H6/Optifine-mapped.jar
OptiFabric error:

Can you tell us what was you doing at that time? I suspect this is problem with some mod defining Non-placeable fluid, and returning defaultState or Block as null instead of Blocks.AIR.

In which context did this error occur? Does it also happen in TechReborn only? Note that 1.18.1 isn't supported, a fix is most likely only happening in 1.18.2

In which context did this error occur? Does it also happen in TechReborn only? Note that 1.18.1 isn't supported, a fix is most likely only happening in 1.18.2

I found a problem with the industrailcraft mod. For some unknown reason this mod didn't work and didn't report errors, so I accidentally ignored it.