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 ('57f61c2d55c5b13639e7c5f8977dcd03', -1, 1713969123, 1713969123, '038d29bb', 5, 0, 0)

Line : 187
File : sessions.php