Friend and App Errors

I wanted to unblock a friend so we could see each others screen time as I thought I could easily block and unblock them when I was trying out something. I wanted to go to the settings to try and fix this but it kept crashing my app. Everything is updated and refreshed. This app is great but minor errors like this can let it down sometimes. So I am asking to see how to unblock someone but also just to raise the fact that there are always minor errors like this one which can ruin the users experience and people have to go on here quite often over disappointing small yet annoying errors.