you file: https://github.com/heyanLE/EasyBangumi/blob/main/app/src/main/java/com/heyanle/easybangumi/utils/OKSP.kt

    @Suppress("IMPLICIT_CAST_TO_ANY", "UNCHECKED_CAST")
    operator fun getValue(thisRef: Any?, property: KProperty<*>): T =
        value ?:
        (when(defValue){
            is String -> sharedPreferences.getString(key, defValue)?:defValue.toString()
            is Int -> sharedPreferences.getInt(key, defValue)
            is Long -> sharedPreferences.getLong(key, defValue)
            is Float -> sharedPreferences.getFloat(key, defValue)
            is Boolean -> sharedPreferences.getBoolean(key, defValue)
            else -> sharedPreferences.getString(key, defValue.toString())?:defValue.toString()
        } as T).also {
            value = it
        }

you ignore "UNCHECKED_CAST", when you read a set(we know sharedPreferences can store Set), it will be crash below:

java.lang.RuntimeException: java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Set

hope fix it ❤️