Empty project page on docker 1.15.0 image

Install with:
docker run -it -p 7777:8080 -v $(pwd)/mydata:/label-studio/data heartexlabs/label-studio:1.15.0

=> Database and media directory: /label-studio/data
=> Static URL is set to: /static/
=> Database and media directory: /label-studio/data
=> Static URL is set to: /static/
Read environment variables from: /label-studio/data/.env
**get 'SECRET_KEY' casted as '' with default ''
/label-studio/.venv/lib/python3.12/site-packages/label_studio_sdk/_extensions/label_studio_tools/core/label_config.py:137: SyntaxWarning: invalid escape sequence '\$'
expression = "^\$[A-Za-z_]+$"**
Starting new HTTPS connection (1): pypi.org:443
**https://pypi.org:443 "GET /pypi/label-studio/json HTTP/1.1" 200 33651
/label-studio/label_studio/projects/models.py:1036: SyntaxWarning: invalid escape sequence '\o'**
"""
January 14, 2025 - 12:08:28
Django version 4.2.16, using settings 'core.settings.label_studio'
Starting development server at http://0.0.0.0:8080/
Quit the server with CONTROL-C.

I also try 1.14, 1.13 and latest.