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 ('083fb4d511b16d6057a50407c72d735f', -1, 1713422726, 1713422726, '03859a6a', 4, 0, 0)

Line : 187
File : sessions.php