I have tried to restart the app and also re login, not working.
Then I have found another older version of sesame on your forum, I uninstalled the play store version then install the older version, it worked.
therefore, I am quite sure that your play store version is crashing with some phone or something in your server.
I have checked both version of sesame app. It both says 2016-3-7, but the older version uses another sesame logo without blue background while the play store version uses the logo with blue background.
I think although both version says 2016-3-7, the forum version is the stable one.
Now I have disabled the play store auto update and hopefully I will not be locked outside my home by an idiot app which the company didn't bother to quality check before putting onto play store.
The stable version is 0.9.47.