Unresolved reference after try/catch added

I have the following code I'm trying to debug and want to add a try/catch block to see why it is crashing. When I add that though, it gives me an unresolved reference a few lines down, as noted in the code comments. What can I do to get around that, please?

private val appServiceInstance by lazy {    // If logs are on app level then it set for everything ..    val configuration =        AppConfiguration.Builder("application-0-rpbsh")            .log(LogLevel.ALL).build()    try{        App.create(configuration)  //When try/catch added around this, the issue happens    }    catch (e: Exception) {        Logger.e("Exception caught: " + e.message)        Logger.e(e.stackTraceToString())    }}init {    if (!initialized) {        setupRealmSync()        initialized = true    } else {        throw IllegalStateException("Singleton instance already created.")    }}private fun setupRealmSync() {    val user = runBlocking { appServiceInstance.currentUser!! } //Unresolved Reference happens here on currentUser    val config = SyncConfiguration        .Builder(            user,            setOf(UserAccount::class,Pellet::class, PelletInsertionVisit::class, PelletLot::class, Patient::class,                Practice::class )        )        .initialSubscriptions(rerunOnOpen = true) { realms ->            add(                realms.query<PelletInsertionVisit>(),                name = "patient info",                updateExisting = true            )            add(realms.query<PelletLot>(), name = "Pallet info", updateExisting = true)            add(realms.query<Patient>(), name = "Patient info", updateExisting = true)            add(realms.query<Practice>(), name = "Practice info", updateExisting = true)            add(realms.query<UserAccount>(), name = "UserAccount info", updateExisting = true)        }        .build()    realm = Realm.open(config)}