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, session_admin) VALUES ('fc3135d1775edfdc3a25d4977ab40c36', -1, 1713567447, 1713567447, '12dfc43b', -7, 0, 0)

Line : 187
File : sessions.php