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 ('91e2a17dc4e2f1501cdaaa45389dac4c', -1, 1713298005, 1713298005, '038cb9aa', -10, 0, 0)

Line : 187
File : sessions.php