Issue title: Stoped working 
 Issue body: Hey :)

Sorry for asking but 22 hours ago the script stoped working 

I screenshoted the issue...I didn't change anything but it just stoped. 

Server is update to date 

![img-20170803-wa0004](https://user-images.githubusercontent.com/28114725/28936270-80df1d44-7887-11e7-8544-f0a380afa6d9.jpg)


 Comments: 
 Comment 0: same here
 Comment 1: Sorry guys i didnt find it. just scrolled over it using my smartphone. just saw it thank you for helping me out man. nice one >)
 Comment 2: @timgrossmann closed <3
 Comment 3: @wecanfuture before filing issues, please check if somebody already did it.
{'source': 'GithubIssues', 'repo_name_with_owner': 'timgrossmann/InstaPy', 'issue_id': 247790159, 'repo_stars': 14301.0}