Authorization problem

[micraken]

hi
when I user upload their pictures normally I have to check and clear them but for a week no authorization is required although my config hasn't changed .
Could somebody tell me what to do ?
I am using php nuke 6.5
Also installed security patch , now I get following notice =>
Notice: Use of undefined constant pwd - assumed 'pwd' in /opt/www/collaertjp/web/ww.nissan-club.be/nuke/html/mainfile.php on line 203

[gtroll]

http://coppermine-gallery.com/forum/search.php for "Use of undefined constant pwd"
PLEASE READ ALL STICKY NOTES BEFORE POSTING, the only dumb question is the one already answered but your were to lazy to search...
check your config settings