Python - ImportError: DLL load failed: The specified module could not be found. while using numpy

Today I used pkl file to predict something, but I got some errors. I tried to solve this error, so find many solutions on stackoverflow, I can't find it. this is error what I faced and library I import.

the code where error occured

model = joblib.load("./GE_PBA_model.pkl");

libraries

from calendar import month
from datetime import datetime
from joblib import Memory
import joblib
import datetime
import pymysql
import numpy as np

error

Traceback (most recent call last):
   File "c:\Users\21530011\Desktop\test.py", line 30, in <module>
     model = joblib.load("./GE_PBA_model.pkl");
    File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\site-packages\joblib\numpy_pickle.py", line 587, in load
     obj = _unpickle(fobj, filename, mmap_mode)
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\site-packages\joblib\numpy_pickle.py", line 506, in _unpickle
     obj = unpickler.load()
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\pickle.py", line 1088, in load
     dispatch[key[0]](self)
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\pickle.py", line 1376, in load_global
     klass = self.find_class(module, name)
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\pickle.py", line 1426, in find_class
     __import__(module, level=0)
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\site-packages\pystan\__init__.py", line 9, in <module>
     from pystan.api import stanc, stan
   File "C:\Users\21530011\Anaconda3\envs\pklEnv\lib\site-packages\pystan\api.py", line 13, in <module>
     import pystan._api  # stanc wrapper
ImportError: DLL load failed: The specified module could not be found

my python version is 3.7.13, numpy version is 1.19.5 and joblib version is 1.1.0 on my Anaconda