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 ('0d5836a2626cac7e21e2c6a55b3796aa', -1, 1713485013, 1713485013, '03934835', -4, 0, 0)

Line : 187
File : sessions.php