Bug is inside this file: kloxo/httpdocs/lib/html/lib.php
When restored from previous version it works fine again.
Another bug is in these two files:
kloxo/httpdocs/lib/ticket/tickethistorylib.php
kloxo/httpdocs/lib/ticket/smessagelib.php
UTF-8 is gone missing after latest update. Needs to restore these two also...
In kloxo/httpdocs/lib/html/lib.php this must be changed:
$header .= "MIME-Version: 1.0\n";
$header .= "Content-type: text/html; charset=utf-8\n";
to
$header = "MIME-Version: 1.0\n";
$header = "Content-type: text/html; charset=utf-8\n";