[Users] Corrupted rc file?

[francesco scaglione]

Since a couple of hours, when I launch claws-mail, it behaves as if it
were the first time I launched it: I'm seeing the welcome screen.

I think that that happened already one time, long ago, and on that
occasion I restored a rc file in .claws-mail. But, which one was
that, I cannot remember!

I'm using Claws-mail 3.11.1 on Debian 8.

Thanks a lot,
Francesco