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 ('c13f3ec6d39e9fb7766a85c9f98f9830', -1, 1632159938, 1632159938, '23accb57', 40, 0, 0)

Line : 187
File : sessions.php