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 ('ec86b0ab0a968536cbb0216af7c93f6b', -1, 1714304652, 1714304652, '03909ad0', -4, 0)

Line : 158
File : sessions.php