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 ('b12dbeaaf3b5aa1d3036d6e5b3ae8635', -1, 1730424406, 1730424406, '038ff185', -1, 0, 0)

Line : 195
File : sessions.php