[Evolution] evolution-3.24.4-1.fc26.x86_64 starts with initial wizard

[Wolfram Wagner <wolfram wagnerw de>]

Hi,
I am using evolution for many years now and could solve a lot of mostly self inflicted issues by myself. But 
this time I need your help.

Maybe a lot of the following is unrelated, but its my today's history.

I am running fedora 26 under cinnamon. Today evolution has worked as usual before all that. I was trying to 
improve the time I need to login to my account. So I renamed my home dir and created another empty one. I 
logged in one time, it was quite fast. I logged off.
Then I moved the new initial home dir away and my old one back into place. I logged in, it was slow again. I 
did not try to open evolution.

So I looked around and found this file: .local/share/cinnamon/application_state
I found several old session states in it. So I removed them manually, while being logged out. Evolution had 
this entry
<application id="evolution.desktop" open-window-count="1" score="4707.4679660797119" last-seen="1382464923"/>
I did also some other hopefully unrelated things, like removing the network manager icon.

My evolution data is seemingly still there. I looks like my environment has reset itself and forgot the 
existing data. When I start evolution it starts the new user wizard.

I have a working file backup in place. I just have no idea which files I need to restore.
I have also found this page: https://help.gnome.org/users/evolution/stable/data-storage.html.de
But the data there seem to be alright.

Please help! Thank you in advance!
Wolfram