These two layers depend on the Yandex table:
poi-station-labels < necessary
osm-place-points < depreciated
This is likely because the copy of OSM on server 1 is older than on server 2.
Changing these reference to
<!ENTITY project_host "localhost">
<!ENTITY project_port "5432">
<!ENTITY project_name "yandex">
<!ENTITY project_user "yandex">
<!ENTITY project_pass "">
To be osm_host, etc will likely resolve itself on server 2.
Fixed in 31d69f8