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 ('c83f9ecbb31fe6a2ed338e03fbd30b42', -1, 1714413508, 1714413508, '12777b20', -4, 0)

Line : 158
File : sessions.php