Unable to import using musicxml2ly

Frescobaldi 3.1.3, ly 2.22.1

Starting musicxml2ly...
Python path configuration:
PYTHONHOME = '/Applications/Frescobaldi.app/Contents/Resources'
PYTHONPATH = '/Applications/Frescobaldi.app/Contents/Resources'
program name = '/opt/local/bin/python3.8'
isolated = 0
environment = 1
user site = 1
import site = 1
sys._base_executable = '/opt/local/bin/python3.8'
sys.base_prefix = '/Applications/Frescobaldi.app/Contents/Resources'
sys.base_exec_prefix = '/Applications/Frescobaldi.app/Contents/Resources'
sys.executable = '/opt/local/bin/python3.8'
sys.prefix = '/Applications/Frescobaldi.app/Contents/Resources'
sys.exec_prefix = '/Applications/Frescobaldi.app/Contents/Resources'
sys.path = [
'/Applications/Frescobaldi.app/Contents/Resources',
'/Applications/Frescobaldi.app/Contents/Resources/lib/python38.zip',
'/Applications/Frescobaldi.app/Contents/Resources/lib/python3.8',
'/Applications/Frescobaldi.app/Contents/Resources/lib/python3.8/lib-dynload',
]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x0000000117252dc0 (most recent call first):

Exited with return code 1.