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 ('f63e634c0d4dbfa3cddc697bf8e838c3', -1, 1737480224, 1737480224, '0387c5a7', 3, 0, 0)

Line : 187
File : sessions.php