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 ('b754a0dbbb906eabb45f814d7b9e4a75', -1, 1713520483, 1713520483, '0316b5d1', -7, 0, 0)

Line : 187
File : sessions.php