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 ('76ec50c69578a83778749f78a8a42c19', -1, 1714309402, 1714309402, '12e175b7', -8, 0)

Line : 158
File : sessions.php