can't follow on instagram

I've had my IG account for over 3 years, been using Followliker for about a year, and never had a problem of being banned or anything. Never ran Followliker 24/7, never used auto-comments and only had semi-conservative settings for follow/unfollow. I used it only for follow/unfollow/like. Well...

Guys have you ever experienced something like this lol, a friend of mine can't open the followers list of any instagram account ( it keeps on loading ) but when he tries to follow people from comments on random profile he can follow them without any issues (by opening their profile). I asked him...