openwebui service don'start...on openwebui desktop

[pincopallo86-creator]

i install openwbui desktop 0.0.14 on windows 11 and correctly starting llama.cpp and open terminal, but download o file sstopped at 22% and don't start Openwebui with this log:

INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
WARNI [open_webui.env]

WARNING: CORS_ALLOW_ORIGIN IS SET TO '*' - NOT RECOMMENDED FOR PRODUCTION DEPLOYMENTS.

C:\Users\pippo\AppData\Roaming\open-webui\python\Lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
WARNI [langchain_community.utils.user_agent] USER_AGENT environment variable not set, consider setting it to identify your requests.

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v0.9.2 - building the best AI user interface.

https://github.com/open-webui/open-webui

Downloading (incomplete total...): 0.00B [00:00, ?B/s] Warning: You are sending unauthenticated requests to the HF Hub. Please set a HF_TOKEN to enable
higher rate limits and faster downloads. | 0/30 [00:00<?, ?it/s]
WARNI [huggingface_hub.utils._http] Warning: You are sending unauthenticated requests to the HF Hub. Please set a HF_TOKEN to enable higher rate limits and faster downloads.
Downloading (incomplete total...): 0%| | 0.00/521M [30:43<?, ?B/s]