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 ('6f55a427040864aa2502e28ab7ba68e8', -1, 1714638212, 1714638212, '03812d5c', 13, 0)

Line : 158
File : sessions.php