Hi, need help for the following error message.
Nothing has been changed on the side. It suddenly occurred.

Warning: session_regenerate_id(): Cannot regenerate session id - session is not active in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php on line 39

Warning: Cannot modify header information - headers already sent by (output started at /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php:39) in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/view.php on line 954

Warning: Cannot modify header information - headers already sent by (output started at /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php:39) in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/page_cache/library.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php:39) in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/page_cache/library.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php:39) in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/page_cache/library.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at /homepages/1/d227302576/htdocs/afh-group_php7/concrete/startup/session.php:39) in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/page_cache/library.php on line 40

Warning: file_put_contents(/homepages/1/d227302576/htdocs/afh-group_php7/files/cache/pages/4/2/e/42e969e9dee66e64259c0abc3bdc13e4f8957c47f99a9d2993a51282d5e5ad1d.cache): failed to open stream: Disk quota exceeded in /homepages/1/d227302576/htdocs/afh-group_php7/concrete/core/libraries/page_cache/types/file.php on line 62