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 ('9bc6d57a66afeade84a192cf0e4f7478', -1, 1714223756, 1714223756, '12daacf9', -8, 0)

Line : 158
File : sessions.php