Nobody cant upload files

[kosarob8]

Hi all!

First: thx that stuff, its the best, i like it very much.
So, i have a problem with it. till this day it works fine, but now my users cant upload a file (admins also cant). I dont know why. 
There is enough space on my web server, and the users dont reach the quota. Upload is allowed for the users.
PLz, if u have some time, watch it.
my page url is: http://kosarobert.uw.hu/dawson/kepek/index.php
I made an account to solve the problem:
login: test
password: test
its a simple user who can upload file. debug mode is enabled for everyone.

I hope somebody can help me, thx

[Nibbler]

I uploaded a pic just fine, what is the problem you are experiencing ?

[kosarob8]

I uploaded a pic just fine, what is the problem you are experiencing ?

I dont understand, yesterday i & my friends cant upload files. interesting, but now i can upload file & my friend is too.
Thank you, and sorry for that. Maybe the server has problems yesterday. Thx again