[cubecart 4 experts - i need help- rebuild cat product count errors]

yes, its got full permissions already .... im baffled

[cubecart 4 experts - i need help- rebuild cat product count errors]

hi all, im having some problems with the rebuild recount function, its generally when i try to rebuild category product count. I get 4 errors...

Warning: unlink(/var/www/vhosts/mysite/httpdocs/includes/extra/admin_cat_cache.txt) : Permission denied in/var/www/vhosts/mysite/httpdocs/admin/sources/maintenance/rebuild.inc.php on line 90

Warning: fopen(/var/www/vhosts/mysite/httpdocs/includes/extra/admin_cat_cache.txt): failed to open stream: Permission denied in /var/www/vhosts/mysite/httpdocs/includes/functions.inc.php on line 1296

Warning: fwrite(): supplied argument is not a valid stream resource in /var/www/vhosts/mysite/httpdocs/includes/functions.inc.php on line1297

Warning: fclose(): supplied argument is not a valid stream resource in /var/www/vhosts/mysite/httpdocs/includes/functions.inc.php on line1298

ive been reading for hours and can not find an answer anywhere,please help if possible