Unable to start machine

I tried starting manually but it is not working it never starts.
here are my running machines. I am trying to start data_visual notebook.

How to fix this?

I am getting this error now:

Kernel failed
Failed to install packages. The error log is attached. Pease edit or delete the environment.yml and restart the machine

I deleted environment.yml but no luck

Here is log i found:
Collecting wordcloud==
Downloading wordcloud- (458 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 459.0/459.0 kB 17.7 MB/s eta 0:00:00
Collecting display==1.0.0
Downloading display-1.0.0.tar.gz (687 bytes)
Preparing metadata (setup.py): started
Preparing metadata (setup.py): finished with status ‘done’
Collecting metric==0.10.0
Downloading metric-0.10.0-py3-none-any.whl (44 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 44.2/44.2 kB 3.0 MB/s eta 0:00:00
Requirement already satisfied: matplotlib in /opt/python/envs/default/lib/python3.8/site-packages (from wordcloud== (3.5.1)
Requirement already satisfied: numpy>=1.6.1 in /opt/python/envs/default/lib/python3.8/site-packages (from wordcloud== (1.23.5)
Requirement already satisfied: pillow in /opt/python/envs/default/lib/python3.8/site-packages (from wordcloud== (9.4.0)
Collecting pandas==0.24.2
Downloading pandas-0.24.2.tar.gz (11.8 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 11.8/11.8 MB 20.2 MB/s eta 0:00:00
Preparing metadata (setup.py): started
Preparing metadata (setup.py): finished with status ‘error’

error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [5 lines of output]
/opt/python/envs/default/lib/python3.8/site-packages/setuptools/init.py:85: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated. Requirements should be satisfied by a PEP 517 installer. If you are using pip, you can try pip install --use-pep517.
error in pandas setup command: ‘install_requires’ must be a string or list of strings containing valid project/version requirement specifiers; Expected end or semicolon (after version specifier)
pytz >= 2011k
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.