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 ('6f8ae0f2b650b7a3489278f19ad4d2b7', -1, 1714670207, 1714670207, '0315e929', 1, 0)

Line : 158
File : sessions.php