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 ('71d4252b69ea2a3fc6c7648ea02ec901', -1, 1714597080, 1714597080, '12e2a95e', 20, 0)

Line : 158
File : sessions.php