I got the same error, it was due to python command doesn't was valid.

I had to install "python-is-python3" package (sudo apt-get install python-is-python3) because the app tries using python and not python3.

I hope it works.
(making ln to python from python3 should work)

I got the same error, it was due to python command doesn't was valid.

I had to install "python-is-python3" package (sudo apt-get install python-is-python3) because the app tries using python and not python3.

I hope it works.
(making ln to python from python3 should work)