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 ('1be888906f8c8d0d628f6a4e1fb4ed0a', -1, 1765850910, 1765850910, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php