Contact the support, and they will do their best to solve your problem.
So it seems like a lot of people are having this problem, so it's obviously not isolated. Here is the message I sent to the support team. Feel free to copy and paste it and send it to them as well:
I'm having a problem with the follow feature on the instagram version of the bot.
Initially the bot was working fine, but I exported "scrape user settings" information, temporary changed the settings, then deleted those and imported the old settings back. After I imported the old settings, the bot stopped following people.
The bot fails all of the following conditions when looking for users to follow. "user has not shared photo between 0-45 days" etc.
When I uncheck all of the conditions, the bot will follow people. But it's just not able to search through the followers of the accounts that I'm scraping and find anyone to follow. I know that I haven't exhausted the amount of people I could follow based on the conditions set, because the users I'm scraping have accounts from 100k to over 1m followers. Further, the bot was working fine until I switched the settings and switched back.
I talked to some other people who are having this exact same problem.
Any information on how to solve this would be great.