pg_restore error-s after pg_dump

Hi
Postgres version :
*PostgreSQL 9.2.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7
20120313 (Red Hat 4.4.7-3), 64-bit*

We transfer from one server to another (with better cpu an ram) our system
using vm converter and when I try to backup database have an error :

*pg_dump: reading schemas
pg_dump: reading user-defined tables
pg_dump: reading extensions
pg_dump: reading user-defined functions
pg_dump: reading user-defined types
pg_dump: reading procedural languages
pg_dump: reading user-defined aggregate functions
pg_dump: reading user-defined operators
pg_dump: reading user-defined operator classes
pg_dump: reading user-defined operator families
pg_dump: reading user-defined text search parsers
pg_dump: reading user-defined text search templates
pg_dump: reading user-defined text search dictionaries
pg_dump: reading user-defined text search configurations
pg_dump: reading user-defined foreign-data wrappers
pg_dump: reading user-defined foreign servers
pg_dump: reading default privileges
pg_dump: reading user-defined collations
pg_dump: reading user-defined conversions
pg_dump: reading type casts
pg_dump: reading table inheritance information
pg_dump: reading rewrite rules
pg_dump: finding extension members
pg_dump: finding inheritance relationships
pg_dump: reading column info for interesting tables
pg_dump: finding the columns and types of table "account_account"
pg_dump: [archiver (db)] query failed: ERROR:  missing chunk number 0 for
toast value 3297740 in pg_toast_2619
pg_dump: [archiver (db)] query was: SELECT a.attnum, a.attname, a.atttypmod,
a.attstattarget, a.attstorage, t.typstorage, a.attnotnull, a.atthasdef,
a.attisdropped, a.attlen, a.attalign, a.attislocal,
pg_catalog.format_type(t.oid,a.atttypmod) AS atttypname,
array_to_string(a.attoptions, ', ') AS attoptions, CASE WHEN a.attcollation
<> t.typcollation THEN a.attcollation ELSE 0 END AS attcollation,
pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(option_name)
|| ' ' || pg_catalog.quote_literal(option_value) FROM
pg_catalog.pg_options_to_table(attfdwoptions) ORDER BY option_name), E',
    ') AS attfdwoptions FROM pg_catalog.pg_attribute a LEFT JOIN
pg_catalog.pg_type t ON a.atttypid = t.oid WHERE a.attrelid =
'274619'::pg_catalog.oid AND a.attnum > 0::pg_catalog.int2 ORDER BY
a.attrelid, a.attnum*

I solve it using *reindexdb *,after I try* pg_dump -U postgres my_db >
/home/mydb.backup* and it was successfull. Then I try to restore database to
ensure that backup is valid
*psql -U postgres new_db < /home/mydb.backup*

And have an errors :

*ERROR : extra data after last expected column
Context: COPY tbl1, line1: "1 2013-12-02 2013-12-02  9387.74
9775.46211485490864940000"   6180.9500000000   80262 ...."
ERROR : column "id" of relation "tbl1" does not exists
invalid command \N
invalid command \N
invalid command \N
.....
invalid command \N
invalid command \.
ERROR:  syntax error at or near "87685"
LINE 1: 87685 SO87690 1 170468 2015-05-30 2015 05 30
        ^
invalid command \.

ERROR:  duplicate key value violates unique constraint "ir_act_client_pkey"
DETAIL:  Key (id)=(103) already exists.
CONTEXT:  COPY ir_act_client, line 21: ""
ERROR:  duplicate key value violates unique constraint
"ir_act_report_xml_pkey"
DETAIL:  Key (id)=(733) already exists.
CONTEXT:  COPY ir_act_report_xml, line 59: ""
ERROR:  duplicate key value violates unique constraint "ir_act_server_pkey"
DETAIL:  Key (id)=(703) already exists.
CONTEXT:  COPY ir_act_server, line 6: ""
ERROR:  duplicate key value violates unique constraint "ir_act_window_pkey"
DETAIL:  Key (id)=(1) already exists.
CONTEXT:  COPY ir_act_window, line 235: "334    Last Product Inventories
ir.actions.act_window   \N      1       2013-07-03 10:39:48.399509
2013-12-16 16:38:..."
ERROR:  duplicate key value violates unique constraint
"ir_act_window_group_rel_act_id_gid_key"
DETAIL:  Key (act_id, gid)=(76, 1) already exists.
CONTEXT:  COPY ir_act_window_group_rel, line 14: ""
ERROR:  duplicate key value violates unique constraint
"ir_act_window_view_pkey"
DETAIL:  Key (id)=(100) already exists.
CONTEXT:  COPY ir_act_window_view, line 88: ""*


Any advice to solve this problem ?



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