The timestamp in the osmosis state file on maps1004 is from 2016. Strangely enough that file was modified recently. A quick look in the osm2pgsql log file does not show anything obviously wrong (/var/log/osmosis/osm2pgsql.log-20181018).
gehel@maps1004:~$ cat /srv/osmosis/state.txt #Thu Oct 18 05:20:09 UTC 2018 sequenceNumber=1369 timestamp=2016-06-12T00\:00\:00Z gehel@maps1004:~$ ls -lh /srv/osmosis/state.txt -rw-r--r-- 1 osmupdater osmupdater 83 Oct 18 05:20 /srv/osmosis/state.txt