Ontology deletion from Administration Console fails with 500 error

Steps to reproduce:

Log into BioPortal with an administrative account
Navigate to the Administration Console
Select the Ontology Administration tab
Select the ontology in the table that you want to delete
Select "Delete" from the "Apply to Selected Rows" dropdown, and click the Go button

The page displays a 500 Internal Server Error message at the top. Error from local dev environment:

Started DELETE "/admin/ontologies" for 127.0.0.1 at 2023-09-21 10:36:34 -0700
Processing by AdminController#delete_ontologies as JSON
  Parameters: {"ontologies"=>"JVTESTONT2"}
Completed 500 Internal Server Error in 339ms (ActiveRecord: 0.0ms | Allocations: 308781)

FrozenError (can't modify frozen String: ""):

app/controllers/admin_controller.rb:287:in `rescue in block in _process_ontologies'
app/controllers/admin_controller.rb:272:in `block in _process_ontologies'
app/controllers/admin_controller.rb:271:in `each'
app/controllers/admin_controller.rb:271:in `_process_ontologies'
app/controllers/admin_controller.rb:171:in `delete_ontologies'

ncbo / bioportal_web_ui

Ontology deletion from Administration Console fails with 500 error #287