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 ('fb47df3ba2214b82c78a665b7e7143d6', -1, 1713304502, 1713304502, '0389c003', -4, 0, 0)

Line : 187
File : sessions.php