I did a fresh install, but creating the database i missed the last step so that it was not existant … fixing that I proceeded once more but now my installation is locked and I cannot find what to do about that …
Hi, welcome to the Community! 
What is your version of SuiteCRM? It really helps to know.
You shouldn’t create the database manually (contrary to many tutorials out there), the SuiteCRM installer creates everything for you.
Please go to your config.php file and locate (or add) a variable called installer_locked and set it to false. The line should look like this:
'installer_locked' => false,
I work with the latest I found, 8.8.0 but … there was no option to create the database with the SuiteCRM installer, I just was not carefull to notice that my provider did not actualy create the DB, id did it simultaneously on my localhost and there it all went just fine …
this lock seems to be one small settintg that I could overwrite, but I cannot find it
Don’t you have a public/legacy/config.php?
Or perhaps a public/legacy/config_overrride.php?