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 ('25948bd8a64d3e3b2c4f6592dfc0de37', -1, 1713573103, 1713573103, '12777d87', 3, 0, 0)

Line : 187
File : sessions.php