Hello Amir
Regarding your first issue, please check this tutorial to solve it: https://www.youtube.com/watch?v=6Kd1eo8ss9c
Can you also show the update message there? As 1.5.1 version is the newest one, there shouldn’t be this asking for the update. Can you check the About info by clicking on the question mark in the upper right corner of the application and show it there?