diff --git a/app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt
index ba3a1a9c..ce2423cd 100644
--- a/app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt
@@ -29,7 +29,10 @@ import com.simplemobiletools.clock.receivers.HideAlarmReceiver
 import com.simplemobiletools.clock.receivers.HideTimerReceiver
 import com.simplemobiletools.clock.services.SnoozeService
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.*
+import com.simplemobiletools.commons.helpers.DAY_MINUTES
+import com.simplemobiletools.commons.helpers.SILENT
+import com.simplemobiletools.commons.helpers.isMarshmallowPlus
+import com.simplemobiletools.commons.helpers.isOreoPlus
 import java.util.*
 import kotlin.math.pow
 
@@ -241,7 +244,11 @@ fun Context.showAlarmNotification(alarm: Alarm) {
     val pendingIntent = getOpenAlarmTabIntent()
     val notification = getAlarmNotification(pendingIntent, alarm)
     val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
-    notificationManager.notify(alarm.id, notification)
+    try {
+        notificationManager.notify(alarm.id, notification)
+    } catch (e: Exception) {
+        showErrorToast(e)
+    }
 
     if (alarm.days > 0) {
         scheduleNextAlarm(alarm, false)
diff --git a/app/src/main/kotlin/com/simplemobiletools/clock/fragments/ClockFragment.kt b/app/src/main/kotlin/com/simplemobiletools/clock/fragments/ClockFragment.kt
index 3683a10d..0d2b1d8d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/clock/fragments/ClockFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/clock/fragments/ClockFragment.kt
@@ -117,7 +117,7 @@ class ClockFragment : Fragment() {
     }
 
     private fun updateTimeZones() {
-        val selectedTimeZones = requireContext().config.selectedTimeZones
+        val selectedTimeZones = context?.config?.selectedTimeZones ?: return
         view.time_zones_list.beVisibleIf(selectedTimeZones.isNotEmpty())
         if (selectedTimeZones.isEmpty()) {
             return