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 ('b7c1d0f6c7c2235e36822cb37dd26bcd', -1, 1737630646, 1737630646, '12d83d60', 8, 0, 0)

Line : 187
File : sessions.php