Google Photos app is not uploading any picture

I can not upload any pictures to Google Photos for several weeks now, so yesterday (Sunday), I decided to poke around 

Photos 5.15.0.337400196 <- condition before troubleshooting

Space used

App 123 MB

Data 618 MB

Cache 642 MB

Total 1.38 GB

Android 10

First, I deleted data and cache and it worked for a while.

Second, I tied tricks mentioned in this article Google Photos Power Management

Battery -> Apps power Management ->Put unused apps to sleep, OFF

Battery -> Apps power Management -> Apps that wont be put to sleep, add Google Photos

Deleted data and cache

Force stop app

Launch app

It works until this article is published.