Reboot when uninstaling the application LG G4 my LG G4 have a problem with updating software and deleting applications. 

Everytime I want to delete an application, system throws me an error

com.android.settings was stopped

I can not get even into application settings...

also, when I want to upgrade OS, files are downloaded but once phone is restarted, I got an "Error" without detail informations about error....

I've tryed to execute this 

adb shell pm clear com.android.settings


but it just reboot my phone. No changes.

Have you ever faced same problem ? ... It's a bit anoying, being unable to delete application

Thank you
Have you installed any custom software on your phone recently? If so than that could explain some issues. First of all the bugs you are experiencing with the settings, but also when trying to update the phone. Many of the custom versions of Android do not support the OTA (Over the Air) updates. 

However, if you do have stock version of Android there could be numerous issues. My recommendation would be to backup all of your files and simply restore your phone. Sometimes this can resolve any internal issue that Android is experiencing.

Hope this helps.