Почему не запускается Python код после компиляции?

Windows.Компилировал через pyinstaller.Версия Python 3.8.5

Exception in Tkinter callback
Traceback (most recent call last):
File "tkinter\__init__.py", line 1883, in __call__
File "links.py", line 26, in cc
File "pyshorteners\__init__.py", line 32, in __init__
File "importlib\__init__.py", line 127, in import_module
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'pyshorteners.shorteners'