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 ('e5877032d4b6bd274dee00099379f409', -1, 1713266698, 1713266698, '12bfd8a3', -8, 0, 0)

Line : 187
File : sessions.php