NextCloud Client for Windows closes

I am using Hetzner’s Nexcloud service. I install the Windows customer to synchronize the files with the remote server. But when I run the customer in Windows, the green icon appears in the taskbar for a few seconds and closes automatically. I am using Windows 11 and I have tried all customer versions for 32 and 64 bit. Any idea that I can be occuring …?

Not sure. Does the Windows event viewer provide any clues?