Nominatim insert more pbf file gives issue

hi everyone, i installed nominatim in my ubuntu machine for India alone, now i wants to add more countries. i know its possible, so i just tried using

./utils/setup.php --osm-file andorra-latest.osm.pbf --import-data

then it show the below message for long time

Import
osm2pgsql SVN version 0.83.0 (64bit id space)

Using projection SRS 4326 (Latlong)

NOTICE:  drop cascades to function get_word_score(wordscore[],text[])
NOTICE:  type "stringlanguagetype" does not exist, skipping
NOTICE:  type "keyvaluetype" does not exist, skipping
Allocating memory for dense node cache
Allocating dense node cache in one big chunk
Allocating memory for sparse node cache
Sharing dense sparse
Node-cache: cache=6123MB, maxblocks=783744*8192, allocation method=11
Mid: pgsql, scale=10000000 cache=6123
Setting up table: planet_osm_nodes
NOTICE:  table "planet_osm_nodes" does not exist, skipping
NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "planet_osm_nodes_pkey" for table "planet_osm_nodes"
Setting up table: planet_osm_ways

Can anybody suggest possible way to get out of this and also any easiest steps available to import.