phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b6decf502cc1b4cf7f76d29f4013af5b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('b6decf502cc1b4cf7f76d29f4013af5b', -1, 1758453168, 1758453168, 'd849d883', -9, 0)

Line : 180
File : /www/includes/sessions.php