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 ('a1c8380fd811b340f07c6c73df417b9f', -1, 1726880857, 1726880857, '03858091', 7, 0)

Line : 158
File : sessions.php