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 ('e14dcf73bbf72b067d9e38be011363ae', -1, 1714541811, 1714541811, '038ff453', -9, 0)

Line : 158
File : sessions.php