Just a moment ago I launched a backup of MySQL database only, but obviously had not saved the job properly, having no target directory for the generated backup.
Everything seemed to go allright, but then suddenly I was thrown out of WP admin and after that could not access the site from my computer (IP address?) at all. The backup jot however sent a message since there is an error in the database dump job (=not target folder...).
Have tried with a couple of computers, but they all are in the same IP domain and result in the same error message: you do not have access rights to /wordpress! !!!! I still can access the web server using cPanel or FileZilla (ftp), so the server is still up and running.
A backup software should NEVER result in this kind of a mess due to a user error!!! I do not know whether my service provider can fix this... so anyone: tell me what to do know :(