First I did comment out the line:
error_log = php_errors.log
in my php.ini (which is in my case in: /etc/php5/apache2/php.ini)
Then I could read in my dokuwiki folder:
[01-Dec-2017 22:17:51 Europe/Berlin] PHP Warning: require_once(/var/www/example.org/wiki/inc/ZipLib.class.php): failed to open stream: No such file or directory in /var/www/example.org/wiki/lib/plugins/odt/renderer.php on line 20
[01-Dec-2017 22:17:51 Europe/Berlin] PHP Fatal error: require_once(): Failed opening required '/var/www/example.org/wiki/inc/ZipLib.class.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/example.org/wiki/lib/plugins/odt/renderer.php on line 20
Indeedly, the file ZipLib.class.php is missing. I find it only in
lib/plugins/odt/ZipLib.class.php
and in some backups. I must have messed it up somehow :(
So I just copied it (which must not really be the real solution, I know) and back it is, the config site.
I must find the real reason why it was missing and find all other missing files if there any are, which I believe.
Thank, andi !
frank