Updates is a gamble

Does the update or not?

Bingo… this time fails ;-(

copy(/var/www/html/scriptcase/prod/third/tcpdf/fonts/dejavu-fonts-ttf-2.34/unicover.txt): failed to open stream: No such file or directory | Script: /var/www/html/scriptcase/devel/class/page/nmPageAdminUpdate.class.php linha: 762

Why are updates always a gamble?

Answered the question (in English) in the German thread.