Cannot read properties of null

[mxllyon]

I have this message at the top of my screen that says 'cannot read properties of null (reading display_name) and it doesnt let me add any games to my library in the bottom right hand corner. Is there a fix for this???

[rawWwRrr]

Use the following for now:
https://store.steampowered.com/account/registerkey

I've read others having issues with the "Add a game' functionality of the client.

[MrHoboSquadron]

I've also started having this problem since yesterday. Mine is fixed by restarting the client until it happens again. I can't find anything in steam's log files about the error. I'm on Linux.

[mxllyon]

I did find a fix for this, removing all files of steam apart from the steam.exe file and steamapps will rebuild steam and sort it out. The issue occurred with a non steam game I added to steam which when removed, caused this issue for some reason