PyEPICS OSError libca.so cannot open shared object file : no such file or directory

I new to EPICS and I try to install Pyepics on my Raspberry Pi4 with RaspOS 64 bit also python 3.9. but when I try to run simple caget command, I found this error:

Traceback (most recent call last):
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/ca.py", line 380, in initialize_libca
    libca = load_dll(find_libca())
  File "/usr/lib/python3.9/ctypes/__init__.py", line 452, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/kkpr01/.local/lib/python3.9/site-packages/epics/clibs/linux64/libca.so: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/ca.py", line 380, in initialize_libca
    libca = load_dll(find_libca())
  File "/usr/lib/python3.9/ctypes/__init__.py", line 452, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/kkpr01/.local/lib/python3.9/site-packages/epics/clibs/linux64/libca.so: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/__init__.py", line 160, in caget
    thispv = get_pv(pvname, timeout=connection_timeout, connect=True)
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/pv.py", line 113, in get_pv
    if ca.current_context() is None:
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/ca.py", line 550, in wrapper
    initialize_libca()
  File "/home/kkpr01/.local/lib/python3.9/site-packages/epics/ca.py", line 382, in initialize_libca
    raise ChannelAccessException('loading Epics CA DLL failed: ' + str(exc))
epics.ca.ChannelAccessException: loading Epics CA DLL failed: /home/kkpr01/.local/lib/python3.9/site-packages/epics/clibs/linux64/libca.so: cannot open shared object file: No such file or directory

I thought that libca.so is not exist, but it is there. here the result from find command

test01@raspberrypi:~ $ find . -iname libca.so
./App/EPICS/epics-base/lib/linux-aarch64/libca.so
./.local/lib/python3.9/site-packages/epics/clibs/linux64/libca.so
./.local/lib/python3.9/site-packages/epics/clibs/linux32/libca.so
./.local/lib/python3.9/site-packages/epics/clibs/linuxarm/libca.so

did I do something wrong? Kindly help. Thank you.