you were not meant to enable notcies - disable notices if they don't mean anything to you in coppermine config.
Your original (genuine) error
critical errorr "cannot write/delete to directory ,albums/userpics/1000
just tells you what issue you're facing: the script doesn't have the needed permissions to acutally delete a file, so you have to look into this issue. Make sure you have set the permissions accordingly (CHMOD), using your FTP application: the albums folder and everything within it must have write permissions for the php script. This usually means to have to CHMOD to 777 or 755 (depends on your webserver setup). If you checked CHMOD permissions, but still can't delete the files using coppermine's user interface, you should contact your webhost and ask them to CHMOD the whole albums folder (/home/mushon/public_html/yuditli/yud/albums/) for you (show them a link to this thread if they're not sure).
In the future, you could temporarily switch coppermine's output to english to make it display error messages you cold post here without the need to translate them (often exact error messages are needed). You switch to english by adding "lang=english" to the url in the address bar, switch back to your default language with "lang=xxx", e.g.
http://www.yoursite.tld/your_coppermine_folder/index.php?lang=englishIt might be helpfull to know your site's url to check this for you, please post it in every thread you request support at least once.
Joachim