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 ('8d2bb47bb143c46077292889a6f22023', -1, 1714686262, 1714686262, '12df0035', -9, 0)

Line : 158
File : sessions.php