Client stopped starting the game

[Client stopped starting the game]

Hi thank you, 

I kept trying and it has been solved out by an Windows update, paradoxically. But I still see the "Update needed" window. So it's been solved out atm.

[Client stopped starting the game]

Hey, my problem with the client started like two weeks ago after the last Windows update. When I was no longer to be able update the client, because he crashed and when I clicked on the play button a pop up window showed up saying "Update requiered..... and Update or Play. That time I still was able to run in eventhough I didn't update it. Then I found out on the forum, that I have to delete last update or the update KB5001391 (or so). 
But this afternoon the problem showed up again and I tried everything I learned on the forum and nothing is working for me  Strange thing is, that I was able to play this morning and there was no update of Windows in between. So, please, I need your help. 

Many thanks