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 ('f3e358c5f70f21dd5fce700e5dd0f6a2', -1, 1714659726, 1714659726, '038590c5', -4, 0)

Line : 158
File : sessions.php