Thread:Project:Support desk/Problem With File Upload: Could not acquire lock for "mwstore://local-backend/local-public/1/1e"./reply (21)

And If I try to upload:

Upload warning Could not create directory "mwstore://local-backend/local-public/2/21".

Warning: wfMkdirParents: failed to mkdir "/2/21" mode 0777 in /w3/httpd/docs/mediawiki/includes/GlobalFunctions.php on line 2546

line 2546-> trigger_error( sprintf( "%s: failed to mkdir \"%s\" mode 0%o", __FUNCTION__, $dir, $mode ),                       E_USER_WARNING );