Raspberry Pi Installation issue

Hi!
I'm trying to install instaPy on my raspberry and I followed your [guide](https://github.com/InstaPy/instapy-docs/blob/master/How_Tos/How_to_Raspberry.md) in order to do it, but unfortunately I'm running into this error when I try I run `sudo python3 quickstart.py` and I don't know what to do:
`InstaPy Version: 0.6.8
._. ._. ._. ._. ._. ._. ._.
Workspace in use: "/root/InstaPy"
Traceback (most recent call last):
File "quickstart.py", line 33, in
headless_browser=True)
File "/usr/local/lib/python3.7/dist-packages/instapy/instapy.py", line 319, in __init__
self.logger,
File "/usr/local/lib/python3.7/dist-packages/instapy/browser.py", line 114, in set_selenium_local_session
options=firefox_options,
File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
self.service.start()
File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/common/service.py", line 98, in start
self.assert_process_still_running()
File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/common/service.py", line 111, in assert_process_still_running
% (self.path, return_code)
selenium.common.exceptions.WebDriverException: Message: Service /usr/local/bin/geckodriver unexpectedly exited. Status code was: -11
`

Thanks for the help!