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 ('07f6b56a42703ec8301b935aa81d7ecd', -1, 1747705915, 1747705915, '0387e56a', 2, 0, 0)

Line : 190
File : sessions.php