solve with deleting this code at /www/server/panel/vhost/nginx/phpmyadmin.conf:14 :
#AUTH_START
auth_basic "Authorization";
auth_basic_user_file /www/server/pass/phpmyadmin.pass;
#AUTH_END
#AUTH_START
auth_basic "Authorization";
auth_basic_user_file /www/server/pass/phpmyadmin.pass;
#AUTH_END
there 3 codes at the same line, so I delete 2 and one of them success I have no idea