phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('c1d91e8a5cbe4b93d5e7c5286f0b8ec3', -1, 1714743127, 1714743127, '12deb3ba', -7, 0)

Line : 158
File : sessions.php