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 ('bddb6569ccf40f49e1f8022c0e4e336f', -1, 1713930268, 1713930268, '030fdd43', -4, 0, 0)

Line : 187
File : sessions.php