First, check that you have the latest app version installed on your device by visiting your app store and selecting UPDATE if there is a new update available. We frequently update the app to fix even the smallest bug, so updating to the latest version could solve the problem you're experiencing.
If updating doesn't resolve the problem, please send an email to firstname.lastname@example.org with screenshots and any relevant information about the bug(s) you’re experiencing. We’ll do our best to investigate and tackle any issues as quickly as we can.
The more details you send us, the better!