Unable to Login (Could not pass the login A/B test)

Hello,

I'm trying to use Instapy to do some automation works (follow, like, etc.), but every time when I run the quickstart python file, the terminal always shows the text "Could not pass the login A/B test." and "Login A/B test failed!", and then "session ended".

I found the issue #274 is same as mine, the solution is to edit xpath_compile.py file in the source code and then reinstall Instapy on the computer. However, I'm trying to run the bot on a ubuntu server, and I'm a beginner so I don't know how to install Instapy on a server after I changed the source code. "pip install instapy" apparently won't work, what command should I use to install a forked Instapy?