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, session_admin) VALUES ('e4be24161aa7b21524da93989560d08f', -1, 1713919288, 1713919288, '038dcabb', -9, 0, 0)

Line : 187
File : sessions.php