Search returns API 500 - ElasticSearch not indexing?

[yl5682]

I have turned a volume in Manifold from Draft to Public but ElasticSearch is still not indexing?
This seems to happen across the board for all volume searches, even before entering a particular volume.
I checked the log and it shows as follows:

[d8a8cda4-8071-4239-b098-5372ad2c7237] Elasticsearch::Transport::Transport::Errors::NotFound ([404] {"error":{"root_cause":[{"type":"index_not_found_exception","reason":"no such index [journals_production]","resource.type":"index_or_alias","resource.id":"journals_production","index_uuid":"_na_","index":"journals_production"}],"type":"index_not_found_exception","reason":"no such index [journals_production]","resource.type":"index_or_alias","resource.id":"journals_production","index_uuid":"_na_","index":"journals_production"},"status":404}):
[d8a8cda4-8071-4239-b098-5372ad2c7237]   
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/options.rb:180:in `index_alias_for'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/options.rb:90:in `block in apply_indices_boost!'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/options.rb:88:in `each'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/options.rb:88:in `each_with_object'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/options.rb:88:in `apply_indices_boost!'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query_builder.rb:19:in `apply_indices_boost!'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query_builder.rb:42:in `block in body'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query_builder.rb:39:in `body'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query_builder.rb:78:in `to_search_options'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query.rb:43:in `perform_search'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/services/search/query.rb:28:in `execute'
[d8a8cda4-8071-4239-b098-5372ad2c7237] app/controllers/api/v1/search_results_controller.rb:11:in `index'
[d8a8cda4-8071-4239-b098-5372ad2c7237] lib/middleware/omniauth_stack.rb:10:in `call'

ElasticSearch is verified to be running based on this command tail -f /var/log/manifold/elasticsearch/current
Manifold was at 7.0.1. Had this issue. Upgraded to 7.1.0 and the issue remains.

I don't know if I need to somehow trigger ElasticSearch to index or may need something else. Any pointers would be great.
Thank you!