Error, unable to determine correct filename for 64bit linux

I dont really know much about python but i just wrote this little script and everytime i try to run something i get an this error "Error, unable to determine correct filename for 64bit linux" I would really appreciate help because im very new to python and to linux

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Code
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from instapy import InstaPy
from instapy import smart_run

insta_username = 'blank'
insta_password = 'blank'

session = InstaPy(username=insta_username,
password=insta_password,
headless_browser=False)

with smart_run(session):
""" Activity flow """

session.set_relationship_bounds(enabled=True,
delimit_by_numbers=True,
max_followers=4590,
min_followers=45,
min_following=77)

session.set_dont_include(["friend1", "friend2", "friend3"])
session.set_dont_like(["pizza", "#store"])

session.follow_user_following(['min.uuus'], amount=200, randomize=False, sleep_delay=60)

""" Clean all followed user - Unfollow all users followed by InstaPy...
"""
session.unfollow_users(amount=500, InstapyFollowed=(True, "all"),
style="FIFO", unfollow_after=24 * 60 * 60,
sleep_delay=601)

""" Joining Engagement Pods...
"""
photo_comments = ['Nice shot! @{}',
'Awesome! @{}',
'Cool :thumbsup:',
'Nice :open_mouth:',
'Love @{}?',
'Like @{}',
'Looks awesome @{}',
'Nice @{}',
':raised_hands: Yes!',
'Epic @{} :muscle:']

session.set_do_comment(enabled = True, percentage = 95)
session.set_comments(photo_comments, media = 'Photo')
session.join_pods(topic='food', engagement_mode='no_comments')

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Console output:
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InstaPy Version: 0.6.10
._. ._. ._. ._. ._. ._. ._. ._.
Workspace in use: "/home/marcel/InstaPy"
Error, unable to determine correct filename for 64bit linux
Traceback (most recent call last):
File "basic_follow-unfollow_activity.py", line 13, in
headless_browser=False)
File "/usr/local/lib/python3.6/dist-packages/instapy/instapy.py", line 323, in __init__
self.logger,
File "/usr/local/lib/python3.6/dist-packages/instapy/browser.py", line 120, in set_selenium_local_session
driver_path = geckodriver_path or get_geckodriver()
File "/usr/local/lib/python3.6/dist-packages/instapy/browser.py", line 36, in get_geckodriver
sym_path = gdd.download_and_install()[1]
File "/usr/local/lib/python3.6/dist-packages/webdriverdownloader/webdriverdownloader.py", line 177, in download_and_install
show_progress_bar=show_progress_bar)
File "/usr/local/lib/python3.6/dist-packages/webdriverdownloader/webdriverdownloader.py", line 129, in download
download_url = self.get_download_url(version, os_name=os_name, bitness=bitness)
File "/usr/local/lib/python3.6/dist-packages/webdriverdownloader/webdriverdownloader.py", line 324, in get_download_url

Beginne in instapy/browser.py bei get_geckodriver und folge dann dem Aufruf in webdriverdownloader.py, der im traceback angezeigt wird. Reproduziere den Fehler beim Setup unter 64-bit Linux und ermittle, warum die Download-URL oder der Dateiname nicht bestimmt werden kann. Als erledigt gilt die Aufgabe, wenn der gemeldete Setup-Pfad unter 64-bit Linux funktioniert oder das Problem eine dokumentierte, reproduzierbare Lösung hat.

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