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 ('1d814f7f3ef173b526581538946c0c34', -1, 1730312080, 1730312080, '039345a0', 29, 0, 0)

Line : 195
File : sessions.php