Unexpected Error has occurred when logging out

It happened now and then some months ago, but this happens very often since 6.0.
Windows 11 Pro (all updated), it very often happens when I use log out and end the game:
An unexpected error has occurred. Exiting FINAL FANTASY XIV.
(date)
Followed by some lines like
ffxiv_dx.exe+3CE98D
ffxiv_dx.exe+438252
I wish I could upload my screenshot here. But can't, without previously uploading somewhere else....
This doesn't help me to help you understand the error :-/