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) VALUES ('145d06a9d6036cac5f602a2007b0a508', -1, 1714322166, 1714322166, '12740d71', 8, 0)

Line : 158
File : sessions.php