Cors Cornelisz van der Cluft Cirkeldiagram

ERROR 8: session_start(): ps_files_cleanup_dir: opendir(/var/lib/php/sessions) failed: Permission denied (13)
0 Error occurred on in function session_start
1 called from line 333 of file session.php in function require_once
2 called from line 75 of file config.php in function require
3 called from line 27 of file fanchart.php

ERROR 2: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/familieschuurman.com/httpdocs/family/includes/functions/functions.php:606)

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/familieschuurman.com/httpdocs/family/includes/functions/functions.php:606) in /var/www/vhosts/familieschuurman.com/httpdocs/family/includes/functions/functions_print.php on line 425
Call Stack
#	Time	Memory	Function	Location
1	0.0000	232232	{main}( )	.../fanchart.php:0
2	0.0157	1659544	print_header( )	.../fanchart.php:435
3	0.0157	1660608	header ( )	.../functions_print.php:425