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 ('9e25f6e1145b8ea4f286f9774bc1e243', -1, 1711700711, 1711700711, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php