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 ('783c2c3dc77d9f4dc0d2537b8e860edf', -1, 1635159220, 1635159220, '03e58e5b', -4, 0, 0)

Line : 187
File : sessions.php