iPhone app not letting me log in

I’m trying to upload an observation in the iPhone app. It’s telling me I need to log in first but when I enter my username and password, nothing happens. It just keeps going back to the log in screen (actually a “sign up” screen with option to log in if you’re a current member). I can still see my prior observations and activity but can’t add anything new without getting past this log in screen. I’m sure I’m entering the correct username and password.

Maybe you’ve already tried this, but the first rule of thumb for general phone troubleshooting is to try powering the phone off and back on to see if things return to normal.

Another thing to check if there’s an update needed. If that is not applicable, try uninstalling and reinstalling the app, then restarting.