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 ('f60b3d627b5cc2934f6452f8dc1ab5ee', -1, 1713945901, 1713945901, '12745a8d', -1, 0, 0)

Line : 187
File : sessions.php