Can't upload custom avatars

[astdirect]

For some reason my members can no longer add pictures to albums or upload custom avatars. When they hit the save button they get a blank screen and nothing happens. Anyone help ?

[xionbabypr]

try giving your custumavatars directory via ftp 777 permissions

sorry my english its not that good lol

[astdirect]

I have 777 permissions for that folder :/