"invalid format for --time parameter: None"

I saw that this issue is marked fixed, but I'm still having the problem with version 2.0.1:

```
wrybread@Bivotron:~$ python -m instalooter hashtag teste123 --username xxxx --password yyyy
invalid format for --time parameter: None
(format is [D]:[D] where D is an ISO 8601 date)

```

It doesn't always happen, but at the moment does every time I run a query. Note that the issue doesn't happen if I don't try to log in. Any idea how to troubleshoot?