failed to access mountpoint

I am trying to mount my google drive on Ubuntu 16.04 but I get an error. Any idea ?

$ google-drive-ocamlfuse -o nonempty /home/louisro/Google\ Drive/ fusermount: failed to access mountpoint /home/louisro/Google Drive: Permission denied

Thanks

EDIT the permissions on /home/louisro/Google\ Drive/ are :

$ ll -d Google\ Drive/
drwx------ 11 louisro louisro 4,0K août   1  2014 Google Drive/

and when tyring to change them I get an error:

$ chmod g+r Google\ Drive/
chmod: changing permissions of 'Google Drive/': Input/output error
$ sudo chmod g+r Google\ Drive/
chmod: cannot access 'Google Drive/': Permission denied
$ sudo chown louisro:louisro Google\ Drive/ -R
chown: cannot access 'Google Drive/': Permission denied