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 ('690d43c1d7e23d32b3a2e642d5b8eb3e', -1, 1713542336, 1713542336, '0387b759', -1, 0, 0)

Line : 187
File : sessions.php