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 ('7471f7c0f3d7a51048b1920e0260d628', -1, 1730424454, 1730424454, '038b55aa', -1, 0, 0)

Line : 195
File : sessions.php