Hi, I had good times in 1.7.10 with flans mod
however, after the update to 1.12.2, the mod simply won't work

Here's a crash log, plese tell me if there's anything wrong thank you!

---- Minecraft Crash Report ----

WARNING: coremods are present:
Inventory Tweaks Coremod (InventoryTweaks-1.63.jar)
ForgePlugin (CustomSkinLoader_Forge-14.7.jar)
Contact their authors BEFORE contacting forge

// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 4/1/18 1:45 PM
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
at com.flansmod.common.driveables.EntityVehicle.func_70071_h_(EntityVehicle.java:391)
at net.minecraft.world.World.func_72866_a(World.java:1990)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:831)
at net.minecraft.world.World.func_72870_g(World.java:1952)
at net.minecraft.world.World.func_72939_s(World.java:1756)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:612)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:765)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524)
at java.lang.Thread.run(Unknown Source)

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

-- Head --
Thread: Server thread
Stacktrace:
at com.flansmod.common.driveables.EntityVehicle.func_70071_h_(EntityVehicle.java:391)
at net.minecraft.world.World.func_72866_a(World.java:1990)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:831)
at net.minecraft.world.World.func_72870_g(World.java:1952)

-- Entity being ticked --
Details:
Entity Type: flansmod:vehicle (com.flansmod.common.driveables.EntityVehicle)
Entity ID: 60
Entity Name: Humvee
Entity's Exact location: -589.50, 5.50, 41.50
Entity's Block location: World: (-590,5,41), Chunk: (at 2,0,9 in -37,2; contains blocks -592,0,32 to -577,255,47), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
Entity's Momentum: 0.00, 0.00, 0.00
Entity's Passengers: [EntitySeat['entity.Seat.name'/61, l='新的世界', x=-589.50, y=5.50, z=41.50], EntitySeat['entity.Seat.name'/62, l='新的世界', x=-589.50, y=5.50, z=41.50], EntitySeat['entity.Seat.name'/63, l='新的世界', x=-589.50, y=5.50, z=41.50], EntitySeat['entity.Seat.name'/64, l='新的世界', x=-589.50, y=5.50, z=41.50], EntitySeat['entity.Seat.name'/65, l='新的世界', x=-589.50, y=5.50, z=41.50], EntityWheel['entity.Wheel.name'/66, l='新的世界', x=-588.35, y=4.88, z=39.20], EntityWheel['entity.Wheel.name'/67, l='新的世界', x=-590.85, y=4.88, z=39.31], EntityWheel['entity.Wheel.name'/68, l='新的世界', x=-590.65, y=4.88, z=43.68], EntityWheel['entity.Wheel.name'/69, l='新的世界', x=-588.16, y=4.88, z=43.57]]
Entity's Vehicle: ERROR NullPointerException: null
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1756)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:612)

-- Affected level --
Details:
Level name: 新的世界
All players: 1 total; [EntityPlayerMP['2'/1, l='新的世界', x=-589.50, y=4.00, z=38.50]]
Chunk stats: ServerChunkCache: 625 Drop: 0
Level seed: 6258679032815292788
Level generator: ID 01 - flat, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (-595,4,41), Chunk: (at 13,0,9 in -38,2; contains blocks -608,0,32 to -593,255,47), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
Level time: 1264 game time, 1264 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 133681 (now: false), thunder time: 153969 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:765)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_162, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1432833168 bytes (1366 MB) / 1925185536 bytes (1836 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 6 total; -XX:+UseG1GC -XX:-UseAdaptiveSizePolicy -XX:-OmitStackTraceInFastThrow -Xmn128m -Xmx2048m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.2.2611 Optifine OptiFine_1.12.2_HD_U_C8 12 mods loaded, 12 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State     | ID                  | Version                  | Source                                | Signature                                |
|:--------- |:------------------- |:------------------------ |:------------------------------------- |:---------------------------------------- |
| UCHIJAAAA | minecraft           | 1.12.2                   | minecraft.jar                         | None                                     |
| UCHIJAAAA | mcp                 | 9.42                     | minecraft.jar                         | None                                     |
| UCHIJAAAA | FML                 | 8.0.99.99                | forge-1.12.2-14.23.2.2611.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCHIJAAAA | forge               | 14.23.2.2611             | forge-1.12.2-14.23.2.2611.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCHIJAAAA | customskinloader    | 14.7                     | CustomSkinLoader_Forge-14.7.jar       | None                                     |
| UCHIJAAAA | durabilityshow      | 5.0.0                    | Durability Show-1.12-5.0.0.jar        | None                                     |
| UCHIJAAAA | flansmod            | 5.5.2                    | Flan's Mod-1.12.2-5.5.2.jar           | None                                     |
| UCHIJAAAA | flansmodapocalypse  | 1.0                      | Flan's Mod-1.12.2-5.5.2.jar           | None                                     |
| UCHIJAAAA | waila               | 1.8.23                   | Hwyla-1.8.23-B38_1.12.jar             | None                                     |
| UCHIJAAAA | inventorytweaks     | 1.63+release.109.220f184 | InventoryTweaks-1.63.jar              | 55d2cd4f5f0961410bf7b91ef6c6bf00a766dcbe |
| UCHIJAAAA | jei                 | 4.8.5.138                | jei_1.12.2-4.8.5.138.jar              | None                                     |
| UCHIJAAAA | wailaharvestability | 1.1.12                   | WailaHarvestability-mc1.12-1.1.12.jar | None                                     |

Loaded coremods (and transformers): 

Inventory Tweaks Coremod (InventoryTweaks-1.63.jar)
invtweaks.forge.asm.ContainerTransformer
ForgePlugin (CustomSkinLoader_Forge-14.7.jar)
customskinloader.forge.TransformerManager
GL info: ERROR RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [EntityPlayerMP['2'/1, l='新的世界', x=-589.50, y=4.00, z=38.50]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge,LiteLoader'
OptiFine Version: OptiFine_1.12.2_HD_U_C8
Render Distance Chunks: 12
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.6.0 NVIDIA 391.35
OpenGlRenderer: GeForce GTX 660/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 8