Hi - I have installed and paid for the Beta version of the Litchi app for Android - on my Samsung. I tried to fly a few times in various locations - and it regularly comes up with an error 133 and won't let me take off. I keep trying and eventually I am able to take off. Then when up in the air for about 5 minutes it decided it wants to land - and even though I tap to try and stop it - it won't stop. I try to stall the decent due to trees and it just keeps coming down and I am trying to get it home as quickly as possible before it lands as it just wants to come straight down. I set height, rest compass, had plenty of satellites attached. Just a bit nervous flying it now using Litchi as don't want to lose it if it just comes straight down. Any suggestions what the issue may be?