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 ('e2aa1e20f8e4f4aa0c7135f282262853', -1, 1737631759, 1737631759, '0316f987', -9, 0, 0)

Line : 187
File : sessions.php