Error: Requested locale "en-US" was not prefetched

ABT Version: 5.2.2

PHP Version: 7.4.14

Theme: Custom theme

Plugin List:

Advanced Ads
Autoptimize
Braintree for WooCommerce
WooCommerce
Jetpack
LearnDash
Logic Hop
MathML
Ninja Forms
Oasis Workflow
WooCommerce
Yoast
WP Simple SAML

Browser: Google Chrome (Version: 88.0.4324.146)

Expected behavior: When citing an uncited item, I expected the item to appear in the editor as a citation (as well as in the reference list generated in the editor)

Actual behavior: The uncited item does appear in the list of cited items in the sidebar, but does not appear as a citation in the editor, nor does a reference list get generated.

Console messages:

processor.ts:60 Uncaught (in promise) Error: Requested locale "en-US" was not prefetched
    at Object.retrieveLocale (processor.ts:60)
    at p.Engine.localeConfigure (citeproc.js?ver=1610460369:1)
    at new p.Engine (citeproc.js?ver=1610460369:1)
    at new e (processor.ts:81)
    at actions.ts:106
    at l (index.js?ver=1.8.3:2)
    at Generator._invoke (index.js?ver=1.8.3:2)
    at Generator.next (index.js?ver=1.8.3:2)
    at redux-routine.min.js?ver=8ec41c688c5daad1d264d85374a1c8b0:2

processor.ts:89 Uncaught (in promise) TypeError: Cannot read property 'rebuildProcessorState' of undefined
    at e.value (processor.ts:89)
    at actions.ts:107
    at l (index.js?ver=1.8.3:2)
    at Generator._invoke (index.js?ver=1.8.3:2)
    at Generator.next (index.js?ver=1.8.3:2)
    at redux-routine.min.js?ver=8ec41c688c5daad1d264d85374a1c8b0:2

This behaviour occurs even with the plugins listed above disabled. This takes place on both new posts as well as historical posts that were authored before the plugin was in place.

dsifford / academic-bloggers-toolkit

Error: Requested locale "en-US" was not prefetched #620