The app closes when, in a lesson, appears the multiple choice
My cell fone app closes ( and I loose the entire lesson) when is presented the multiple choice screen (the case when I have to choose one or more right options from 3 or 4 presented). This have been occurring for the past 3 days. I've been using Duolingo for the past 18 months without any problem. I have 16500 points in Spanish and more than 15200 in French. Please tell me what sould I do for completing my daily task is almost impossible on the cell phone, once the application closes suddenly, everytime the descibed above screen appears.
Should I delete and then reinstall de application? In this case am I to loose my whole bunch of points? My operational system is iOS 7.1.2.
Many thanks for your help.