Did you get that specific error log before? Because that seems to be not the same, but a different issue now.
In your log, we see
Caused by: java.io.IOException: Cannot run program “/Users/guzhongqian/opt/anaconda3/envs/py3_knime/bin/python”: error=2, No such file or directory
Could you try in some terminal
conda activate /Users/guzhongqian/opt/anaconda3/envs/py3_knime
? Seems like this environment is not existing.
If it exists then please do
conda freeze
and post the content here.
Did you try my other suggestion (creating a new environment)?