As reported by Koen:
Choose a default language for the whole site. Users can override this setting later. You can also set $CFG->lang="yourlangcode_utf8"; in config.php if you want localised error messages for database connection problems. (There is no _utf8 any more)
Note: This backup contains no users and so all activities have been switched to "without user data" mode. Exercise and Workshop activities will not be included in the backup, since these modules are not compatible with this type of backup. (No Exercise in 2.0)
Conecting to ldap server.