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 ('e68e40d68dba828ebe6a1dd3908d3a1b', -1, 1737621969, 1737621969, '0d3bc34e', 2, 0, 0)

Line : 187
File : sessions.php