diff --git a/app/build.gradle b/app/build.gradle
index 9c7f6d7d1..3978a1d32 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -58,7 +58,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.18.6'
+    implementation 'com.simplemobiletools:commons:5.18.7'
     implementation 'joda-time:joda-time:2.10.1'
     implementation 'androidx.multidex:multidex:2.0.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta2'
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
index bb384e878..5f197b95c 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
@@ -836,6 +836,10 @@ class EventActivity : SimpleActivity() {
     }
 
     private fun deleteEvent() {
+        if (mEvent.id == null) {
+            return
+        }
+
         DeleteEventDialog(this, arrayListOf(mEvent.id!!), mEvent.repeatInterval > 0) {
             ensureBackgroundThread {
                 when (it) {
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/extensions/Context.kt
index 7de9cb341..682a0c314 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/extensions/Context.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/extensions/Context.kt
@@ -353,7 +353,7 @@ fun Context.scheduleCalDAVSync(activate: Boolean) {
         val syncCheckInterval = 2 * AlarmManager.INTERVAL_HOUR
         try {
             alarm.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + syncCheckInterval, syncCheckInterval, pendingIntent)
-        } catch (ignored: SecurityException) {
+        } catch (ignored: Exception) {
         }
     } else {
         alarm.cancel(pendingIntent)