PyMOD3.0.2 throws error in PyMOL 3.1 incentive version on Mac OS

[MooersLab]

I am using PyMOL 3.1.3 on Mac OS Sequoia with a M4 chip.

A popup window says

cannot import name 'dict_of_matrices' from 'pymod_lib.pymod_vars' (/Users/blaine/.pymol/startup/pymod3/pymod_lib/pymod_vars.py)

The backtrace is

Traceback (most recent call last):
  File "/Users/blaine/.pymol/startup/pymod3/__init__.py", line 298, in startup_pymod
    from pymod_lib import pymod_main
  File "/Users/blaine/.pymol/startup/pymod3/pymod_lib/pymod_main/__init__.py", line 37, in <module>
    from ._development import PyMod_development
  File "/Users/blaine/.pymol/startup/pymod3/pymod_lib/pymod_main/_development.py", line 12, in <module>
    from pymod_lib.pymod_seq.seq_star_alignment import global_pairwise_alignment_cs
  File "/Users/blaine/.pymol/startup/pymod3/pymod_lib/pymod_seq/seq_star_alignment.py", line 12, in <module>
    from pymod_lib.pymod_vars import dict_of_matrices
ImportError: cannot import name 'dict_of_matrices' from 'pymod_lib.pymod_vars' (/Users/blaine/.pymol/startup/pymod3/pymod_lib/pymod_vars.py)