Deepstack object detection

Hi I have installed deepstack UI on docker (streamlit UI) a have several errors on console.

File "/usr/local/lib/python3.8/site-packages/streamlit/ScriptRunner.py", line 322, in _run_script
    exec(code, module.__dict__)

File "/app/streamlit-ui.py", line 88, in <module>
    predictions = process_image(pil_image, dsobject)

File "/usr/local/lib/python3.8/site-packages/streamlit/caching.py", line 591, in wrapped_func
    return get_or_create_cached_value()

File "/usr/local/lib/python3.8/site-packages/streamlit/caching.py", line 575, in get_or_create_cached_value
    return_value = func(*args, **kwargs)

File "/app/streamlit-ui.py", line 38, in process_image
    dsobject.detect(image_bytes)

File "/usr/local/lib/python3.8/site-packages/deepstack/core.py", line 124, in detect
    response = post_image(url, image_bytes, self._api_key, self._timeout)File "/usr/local/lib/python3.8/site-packages/deepstack/core.py", line 89, in post_image
    raise DeepstackException(

Can you help to resolve these problems ?
Regards
Giloris