User-agent error when running Selenium parser exe file

Question

I made an exe file with my Selenium parser. But there is a problem. When starting it gives the following error.

Traceback (most recent call last):
  File "main.py", line 11, in <module>
  File "fake_useragent\fake.py", line 56, in __init__
  File "fake_useragent\utils.py", line 52, in load
fake_useragent.errors.FakeUserAgentError: ('Data list is empty', None)

Here are all the lines related to using fake_useragent:

from fake_useragent import FakeUserAgent
a = FakeUserAgent().random
options = webdriver.ChromeOptions()
options.add_argument(f'user-agent={a}')

How to fix this problem?

I used pyinstaller when creating the exe. I used this command:

pyinstaller ./main.py --onefile --noconsole --add-binary "./driver/chromedriver.exe;./driver"

The project structure is like this:

MyProj/
　├ driver/
　│　└ chromedriver.exe
　└ main.py

When I remove the lines related to fake-useragent, the code works without errors. Adding --hidden-import=fake_useragent didn't help. What is the problem? Can I somehow change the exe creation command?