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 ('7092a6323a42b998d63da5c7ae1b8878', -1, 1714714955, 1714714955, '12bfd342', -4, 0)

Line : 158
File : sessions.php