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 ('fa1042071c03cfed0b5a1f74a0bf9989', -1, 1637982598, 1637982598, '0359cc7f', -10, 0, 0)

Line : 187
File : sessions.php