Pytest failed

[Jiaming1999]

When I run pytest

pytest

There are three test failed:

=================================================== short test summary info =================================================== 
FAILED test_fg.py::test_translate_multi_new_mod - AttributeError: 'NoneType' object has no attribute 'group'
FAILED test_fg.py::test_translator_false_input - FileNotFoundError: [WinError 2] The system cannot find the file specified: '...
FAILED test_fg.py::test_translate_failsafe - AssertionError: assert 'falsely modified' == 'something to say'

I am wondering what caused this. I am currently trying to see if there is any flaky tests in test design so I need to get all tests pass at first.