thank you very much for your fast reply. Yes I really clicked on "Titles ". The Database was generated with calibre 0.8.46, afterwards I moved the whole database with ftp to the server.
I didnt change anything in the database.
The whole error:
[Sun May 20 16:32:41 2012] [error] PHP Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.' in /home/.../calibre/utilities.php:113\nStack trace:\n#0 /home/.../calibre/utilities.php(113): DateTime->__construct('2012-05-20 12:2...')\n#1 /home/.../calibre/utilities.php(143): MyDate->__construct('2012-05-20 12:2...')\n#2 /home/sennierer/calibre/db.php(672): format_date('2012-05-20 12:2...', 'dd-MMM-yyyy')\n#3 /home/.../calibre/db.php(766): CalDatabase->book(1408, true, false)\n#4 /home/.../calibre/modules/titles.php(31): CalDatabase->all_books(true, false)\n#5 /home/.../calibre/index.php(126): DoTitles->do_work(Object(Smarty), Object in /home/.../calibre/utilities.php on line 113
Thanks a lot!