Error "relation "public.pg_toast_5987783_index" does not exist" when running the utility about pgcompacttable HOT 3 CLOSED

SELECT
            indexname, indexdef,
            pg_catalog.pg_relation_size(indexoid) as idxsize
        FROM (
            SELECT
                indexname, indexdef,
                (quote_ident(schemaname) || '.' || quote_ident(indexname))::regclass AS indexoid
            FROM pg_catalog.pg_indexes
            WHERE
                schemaname = 'public' AND
                tablename = 'user_subscriptions'/* OFFSET 0*/
        ) AS sq
        LEFT JOIN pg_catalog.pg_constraint ON
            conindid = indexoid AND contype IN ('p', 'u', 'x')
        ORDER BY idxsize

                                                                        QUERY PLAN                                                                         
------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=39.23..39.24 rows=1 width=104)
   Sort Key: (pg_relation_size((((quote_ident((n.nspname)::text) || '.'::text) || quote_ident((i.relname)::text)))::regclass, 'main'::text))
   ->  Merge Join  (cost=4.84..39.22 rows=1 width=104)
         Merge Cond: (n.oid = c.relnamespace)
         Join Filter: (x.indexrelid = i.oid)
         ->  Nested Loop Left Join  (cost=0.27..1868.52 rows=453 width=136)
               Join Filter: (pg_constraint.conindid = ((((quote_ident((n.nspname)::text) || '.'::text) || quote_ident((i.relname)::text)))::regclass)::oid)
               ->  Nested Loop  (cost=0.27..83.70 rows=453 width=136)
                     ->  Index Scan using pg_namespace_oid_index on pg_namespace n  (cost=0.27..31.03 rows=1 width=68)
                           Filter: (nspname = 'public'::name)
                     ->  Seq Scan on pg_class i  (cost=0.00..48.14 rows=453 width=72)
                           Filter: (relkind = ANY ('{i,I}'::"char"[]))
               ->  Materialize  (cost=0.00..18.43 rows=120 width=4)
                     ->  Seq Scan on pg_constraint  (cost=0.00..17.83 rows=120 width=4)
                           Filter: (contype = ANY ('{p,u,x}'::"char"[]))
         ->  Materialize  (cost=4.56..18.28 rows=1 width=8)
               ->  Nested Loop  (cost=4.56..18.28 rows=1 width=8)
                     ->  Index Scan using pg_class_relname_nsp_index on pg_class c  (cost=0.28..8.30 rows=1 width=8)
                           Index Cond: (relname = 'user_subscriptions'::name)
                           Filter: (relkind = ANY ('{r,m,p}'::"char"[]))
                     ->  Bitmap Heap Scan on pg_index x  (cost=4.29..9.96 rows=2 width=8)
                           Recheck Cond: (indrelid = c.oid)
                           ->  Bitmap Index Scan on pg_index_indrelid_index  (cost=0.00..4.29 rows=2 width=0)
                                 Index Cond: (indrelid = c.oid)