phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('979c092d437ea78d80983d400217a474', -1, 1737483466, 1737483466, '030efaff', 9, 0, 0)

Line : 187
File : sessions.php