phpBB : Critical Error

Error creating new session : session_begin

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c6f4ffbe684d6b9e929b1ded07feb114' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('c6f4ffbe684d6b9e929b1ded07feb114', -1, 1715698164, 1715698164, '00000000', -4, 0)

Line : 158
File : /www/htdocs/w0063aaa/Dermion/phpBB2/includes/sessions.php