Thank you for your reply!
I am able to link with Facebook and Google, and the account I want to log in to is Facebook. The thing is, it says there is some sort of error or delay that is causing me to be unable to log in. Could it have something to do with the way Signulous tech support got my apps to work? They weren’t working for the longest time until Signulous finally did something that made the modded apps work without having to specifically trust a certificate in Settings. If not that, what could be the issue?