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 ('c8e59ab8143e6eb9d5b646d637b40c72', -1, 1737438532, 1737438532, '1276a464', -9, 0, 0)

Line : 187
File : sessions.php