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 ('ed4ea97d783e39d25faf90c4b1ff7ba2', -1, 1714680138, 1714680138, '0d3a4d62', 7, 0)

Line : 158
File : sessions.php