The app uses UIReferenceLibraryViewController. It appears to be related to the crash. It's an iOS SwiftUI application.
The log shows some warnings like:
2022-12-22 14:12:22.844524-0600 hangul-practice[22135:13945548] [default] capability properties: could not find untranslocated node for <FSNode 0x6000008c7140> { isDir = ?, path = '/private/var/folders/dy/xsxx3q394kggnyw6st2p86840000gn/X/69B34322-B92C-55AF-BE13-2C8CEA83BE7B/d/Wrapper/hangul-practice.app' }, proceeding on the assumption it is not translocated: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"
And then, an assertion failure:
2022-12-22 14:12:23.462759-0600 hangul-practice[22135:13944773] *** Assertion failure in void *DictionaryServicesLibrary(void)(), _UIDictionaryManager.m:25
2022-12-22 14:12:23.469960-0600 hangul-practice[22135:13944773] [General] dlopen(/System/Library/PrivateFrameworks/DictionaryServices.framework/DictionaryServices, 0x0001): tried: '/Users/louis1001/Library/Developer/Xcode/DerivedData/hangul-practice-axifqfgooymqougfqjsrjjjpxqyq/Build/Products/Debug-iphoneos/DictionaryServices.framework/DictionaryServices' (no such file), '/Users/louis1001/Library/Developer/Xcode/DerivedData/hangul-practice-axifqfgooymqougfqjsrjjjpxqyq/Build/Products/Debug-iphoneos/PackageFrameworks/DictionaryServices.framework/DictionaryServices' (no such file), '/System/iOSSupport/System/Library/PrivateFrameworks/DictionaryServices.framework/DictionaryServices' (no such file), '/System/Library/PrivateFrameworks/DictionaryServices.framework/DictionaryServices' (no such file), '/System/Library/Frameworks/DictionaryServices.framework/DictionaryServices' (no such file)
dictionaryHasDefinition(forTerm:) is used within the UI to determine if a button should be greyed out or not.
Here is the code for the UI:
https://github.com/louis1001/hangul-practice-ios/blob/main/hangul-practice/Views/Details.swift#L43
And here is the part that handles Dictionary Definitions:
https://github.com/louis1001/hangul-practice-ios/blob/main/hangul-practice/Utils/DictionaryReference.swift