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 ('8a4d7c39c82d0a6db3a5ff56e2f953e3', -1, 1737627978, 1737627978, '12e2aa34', 10, 0, 0)

Line : 187
File : sessions.php