Trouble with cstats during installation

[Lucas97223]

Hi,
I am trying to install the ssm package on my windows 11, python 3.10.14. The installation succeeded but when I try to import(ssm) i get:

import ssm
Traceback (most recent call last):
File "", line 1, in
File "C:\Users...\ssm\ssm_init_.py", line 3, in
from .hmm import *
File "C:\Users...\ssm\ssm\hmm.py", line 8, in
from ssm.optimizers import adam_step, rmsprop_step, sgd_step, convex_combination
File "C:\Users...\ssm\ssm\optimizers.py", line 17, in
from ssm.primitives import solve_symm_block_tridiag
File "C:\Users...\ssm\ssm\primitives.py", line 10, in
from ssm.cstats import _blocks_to_bands_lower, _blocks_to_bands_upper,
ModuleNotFoundError: No module named 'ssm.cstats'

I tried to do this install on two different machines but i got the same problem. How should this be solved?
Thanks!