Indexing error from Eastern European posters item

[hackartisan]

[DPUL/production] RSolr::Error::Http: RSolr::Error::Http - 400 Bad RequestError: Async exception during distributed update: Error from server at http://lib-solr-prod6.princeton.edu:8983/solr/dpul-production_shard1_replica_n4/: null

https://figgy.princeton.edu/catalog/f92342a6-5a87-47ed-be49-92fbb6fc6d74

Backtrace

line 8 of [PROJECT_ROOT]/config/initializers/monkeypatches/solr_loader_patch.rb: send_one
line 58 of [PROJECT_ROOT]/app/models/iiif_resource.rb: reindex
line 46 of [PROJECT_ROOT]/app/jobs/spotlight/reindex_job.rb: block in perform

View full backtrace and more info at honeybadger.io

[hackartisan]

The item does index without errors into my local instance. However, there are no files on this resource. Maybe it shouldn't be complete? @kelea99 ?