Go to http://solr-idc.traefik.me/solr/#/ > Core Admin and check if it's not current. If there's a green checkbox you may need to add objects to islandora or run a migrations.
Run make solr-reload-cores and go back to http://solr-idc.traefik.me/solr/#/ > Core Admin and check if the status of "current" is green. If green this PR worked.
Ticket: https://jhulibraries.atlassian.net/browse/LAGS-145
To test
make solr-reload-cores
and go back to http://solr-idc.traefik.me/solr/#/ > Core Admin and check if the status of "current" is green. If green this PR worked.