Sign In doesn't work – Clean it Up - Mass Unfollow & Unlike & Repost Review

I used this app for roughly 2 months and have enjoyed the pro version. It worked great. Recently, myself and several friends have been unable to sign into the app, inexplicably. Hopefully this gets resolved soon, because currently I have a useless app that I paid for.
Review by foreverunited21 on Clean it Up - Mass Unfollow & Unlike & Repost.