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 ('16e7fd964f1a879ba9fa1cd50bc94a14', -1, 1737635657, 1737635657, '0389baba', -9, 0, 0)

Line : 187
File : sessions.php