thank you Ash, this fix category pagination but not pagination in users profile ,cus users use other file "user.php" so i add new function in /libs/html1.php "do_pages_users" for users profile only ! and change
<a href="?page='.$i.$query
to
<a href="/user/?page='.$i.$query
and in user.php i change
do_pages($rows, $page_size);
to
do_pages_users($rows, $page_size);