Thank you all for your help :-)
IŽm just a school intern and you guys really helped me out a lot already,
So my error message is:
Warning: mkdir(/var/www/html/dawiki/images/9): Permission denied in
/var/www/html/dawiki/includes/Image.php on line 658
Warning: mkdir(/var/www/html/dawiki/images/9/9f): No such file or directory
in /var/www/html/dawiki/includes/Image.php on line 660
Warning: move_uploaded_file(/var/www/html/dawiki/images/9/9f/Luenen1.jpg):
failed to open stream: No such file or directory in
/var/www/html/dawiki/includes/SpecialUpload.php on line 312
Warning: move_uploaded_file(): Unable to move '/tmp/phpxSApvt' to
'/var/www/html/dawiki/images/9/9f/Luenen1.jpg' in
/var/www/html/dawiki/includes/SpecialUpload.php on line 312
its MediaWiki 1.4(I have two wikis running on the same DB, on different
prefixes and the 1st wiki didnŽt have this Problem)
Greetings