How can I fix the 'cp949' codec can't decode byte error when loading mantra.yaml in ComfyUI-Scepter?

[rlals1345]

Adding extra search path checkpoints E:\StabilityMatrix\Data\Models\StableDiffusion
Adding extra search path diffusers E:\StabilityMatrix\Data\Models\Diffusers
Adding extra search path loras E:\StabilityMatrix\Data\Models\Lora
Adding extra search path loras E:\StabilityMatrix\Data\Models\LyCORIS
Adding extra search path clip E:\StabilityMatrix\Data\Models\TextEncoders
Adding extra search path clip_vision E:\StabilityMatrix\Data\Models\ClipVision
Adding extra search path embeddings E:\StabilityMatrix\Data\Models\Embeddings
Adding extra search path vae E:\StabilityMatrix\Data\Models\VAE
Adding extra search path vae_approx E:\StabilityMatrix\Data\Models\ApproxVAE
Adding extra search path controlnet E:\StabilityMatrix\Data\Models\ControlNet
Adding extra search path controlnet E:\StabilityMatrix\Data\Models\T2IAdapter
Adding extra search path gligen E:\StabilityMatrix\Data\Models\GLIGEN
Adding extra search path upscale_models E:\StabilityMatrix\Data\Models\ESRGAN
Adding extra search path upscale_models E:\StabilityMatrix\Data\Models\RealESRGAN
Adding extra search path upscale_models E:\StabilityMatrix\Data\Models\SwinIR
Adding extra search path hypernetworks E:\StabilityMatrix\Data\Models\Hypernetwork
Adding extra search path ipadapter E:\StabilityMatrix\Data\Models\IpAdapter
Adding extra search path ipadapter E:\StabilityMatrix\Data\Models\IpAdapters15
Adding extra search path ipadapter E:\StabilityMatrix\Data\Models\IpAdaptersXl
Adding extra search path prompt_expansion E:\StabilityMatrix\Data\Models\PromptExpansion
Adding extra search path ultralytics E:\StabilityMatrix\Data\Models\Ultralytics
Adding extra search path ultralytics_bbox E:\StabilityMatrix\Data\Models\Ultralytics\bbox
Adding extra search path ultralytics_segm E:\StabilityMatrix\Data\Models\Ultralytics\segm
Adding extra search path sams E:\StabilityMatrix\Data\Models\Sams
Adding extra search path diffusion_models E:\StabilityMatrix\Data\Models\DiffusionModels
[START] Security scan
[DONE] Security scan
## ComfyUI-Manager: installing dependencies done.
** ComfyUI startup time: 2025-06-13 02:46:58.081
** Platform: Windows
** Python version: 3.10.11 (tags/v3.10.11:7d4cc5a, Apr  5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)]
** Python executable: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\venv\Scripts\python.exe
** ComfyUI Path: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux
** ComfyUI Base Folder Path: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux
** User directory: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\user
** ComfyUI-Manager config path: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\user\default\ComfyUI-Manager\config.ini
** Log path: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\user\comfyui.log

Prestartup times for custom nodes:
   1.4 seconds: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Manager

Checkpoint files will always be loaded safely.
Total VRAM 32607 MB, total RAM 63081 MB
pytorch version: 2.7.1+cu128
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 5090 : cudaMallocAsync
Using sub quadratic optimization for attention, if you have memory or speed issues try using: --use-split-cross-attention
Python version: 3.10.11 (tags/v3.10.11:7d4cc5a, Apr  5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)]
ComfyUI version: 0.3.40
ComfyUI frontend version: 1.21.7
[Prompt Server] web root: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\venv\lib\site-packages\comfyui_frontend_package\static
Traceback (most recent call last):
  File "E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\nodes.py", line 2124, in load_custom_node
    module_spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Crystools\__init__.py", line 10, in <module>
    from .core import version, logger
  File "E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Crystools\core\__init__.py", line 5, in <module>
    from .common import *
  File "E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Crystools\core\common.py", line 4, in <module>
    from deepdiff import DeepDiff
ModuleNotFoundError: No module named 'deepdiff'

Cannot import E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Crystools module for custom nodes: No module named 'deepdiff'
### Loading: ComfyUI-Manager (V3.32.8)
[ComfyUI-Manager] network_mode: public
[ComfyUI-Manager] Since --preview-method is set, ComfyUI-Manager's preview method feature will be ignored.
### ComfyUI Version: v0.3.40-15-gecb8d15e | Released on '2025-06-11'
scepter [INFO] 2025-06-13 02:47:02,261 [File: import_utils.py Function: <module> at line 92]  PyTorch version 2.7.1+cu128 Found.
[Info]: Loading config from [E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Scepter\config\scepter_workflow.yaml] as yaml file.
[Error]: Load yaml from E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Scepter\config\mantra.yaml error. Message: 'cp949' codec can't decode byte 0xe7 in position 54: illegal multibyte sequence
[ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/alter-list.json
[ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/github-stats.json
[ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/model-list.json
[ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/extension-node-map.json
[ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json
Cannot connect to comfyregistry.
FETCH DATA from: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json[ComfyUI-Manager] Due to a network error, switching to local mode.
=> custom-node-list.json
=> cannot schedule new futures after shutdown
FETCH DATA from: E:\StabilityMatrix\Data\Packages\ComfyUI_Flux\custom_nodes\ComfyUI-Manager\custom-node-list.json [DONE]
[ComfyUI-Manager] All startup tasks have been completed.

[Error]: Load yaml from E:\…\ComfyUI-Scepter\config\mantra.yaml error. Message: 'cp949' codec can't decode byte 0xe7 in position 54: illegal multibyte sequence

How can I fix the 'cp949' codec can't decode byte error when loading mantra.yaml in the ComfyUI-Scepter extension?