ATTRIBUTE ERROR #402

After installation the FOLLOWING error pops up:

"An error has occurred while executing Python code:

AttributeError: _ARRAY_API not found
AttributeError: _ARRAY_API not found

Python version: 3.9.5 (default, Sep 10 2021, 16:18:19) [Clang 12.0.5 (clang-1205.0.22.11)]
QGIS version: 3.40.5-Bratislava Bratislava, 8d6d1b54486 "

FOLLOWED BY THIS ERROR

"Couldn't load plugin 'SemiAutomaticClassificationPlugin' due to an error when calling its classFactory() method

ImportError: numpy.core.multiarray failed to import
Traceback (most recent call last):
File "/Applications/QGIS-LTR.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 478, in _startPlugin
plugins[packageName] = package.classFactory(iface)
File "/Users/chingkheirk/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/init.py", line 63, in classFactory
from .semiautomaticclassificationplugin import (
File "/Applications/QGIS-LTR.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 1100, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "/Users/chingkheirk/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/semiautomaticclassificationplugin.py", line 68, in
from .spectral_signature import (
File "/Applications/QGIS-LTR.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 1100, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "/Users/chingkheirk/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/spectral_signature/spectral_signature_plot.py", line 28, in
from matplotlib.ticker import MaxNLocator
File "/Applications/QGIS-LTR.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 1100, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "/Applications/QGIS-LTR.app/Contents/MacOS/lib/python3.9/site-packages/matplotlib-3.3.0-py3.9-macosx-10.13.0-x86_64.egg/matplotlib/init.py", line 174, in
_check_versions()
File "/Applications/QGIS-LTR.app/Contents/MacOS/lib/python3.9/site-packages/matplotlib-3.3.0-py3.9-macosx-10.13.0-x86_64.egg/matplotlib/init.py", line 159, in _check_versions
from . import ft2font
File "/Applications/QGIS-LTR.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 1100, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
ImportError: numpy.core.multiarray failed to import

Python version: 3.9.5 (default, Sep 10 2021, 16:18:19) [Clang 12.0.5 (clang-1205.0.22.11)]
QGIS version: 3.40.5-Bratislava Bratislava, 8d6d1b54486 "