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 ('b360d7597cdf760d7a2b4521ed214f4c', -1, 1714355469, 1714355469, '12d85e98', 10, 0)

Line : 158
File : sessions.php