diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyDayPagerAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyDayPagerAdapter.kt
index 9cd8e7285..19dcd1854 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyDayPagerAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyDayPagerAdapter.kt
@@ -30,7 +30,7 @@ class MyDayPagerAdapter(fm: FragmentManager, private val mCodes: List<String>, p
 
     fun checkDayEvents(pos: Int) {
         for (i in -1..1) {
-            mFragments[pos + i].checkEvents()
+            mFragments[pos + i]?.checkEvents()
         }
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyMonthPagerAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyMonthPagerAdapter.kt
index f58ecd7bb..59634975d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyMonthPagerAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyMonthPagerAdapter.kt
@@ -29,7 +29,7 @@ class MyMonthPagerAdapter(fm: FragmentManager, private val mCodes: List<String>,
 
     fun refreshEvents(pos: Int) {
         for (i in -1..1) {
-            mFragments[pos + i].updateCalendar()
+            mFragments[pos + i]?.updateCalendar()
         }
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyWeekPagerAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyWeekPagerAdapter.kt
index 41c0bb287..9afc7f142 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyWeekPagerAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyWeekPagerAdapter.kt
@@ -27,13 +27,13 @@ class MyWeekPagerAdapter(fm: FragmentManager, val mWeekTimestamps: List<Int>, va
     }
 
     fun updateScrollY(pos: Int, y: Int) {
-        mFragments[pos - 1].updateScrollY(y)
-        mFragments[pos + 1].updateScrollY(y)
+        mFragments[pos - 1]?.updateScrollY(y)
+        mFragments[pos + 1]?.updateScrollY(y)
     }
 
     fun refreshEvents(pos: Int) {
         for (i in -1..1) {
-            mFragments[pos + i].updateEvents()
+            mFragments[pos + i]?.updateEvents()
         }
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyYearPagerAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyYearPagerAdapter.kt
index c4c38bf1b..6741a2d1d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyYearPagerAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyYearPagerAdapter.kt
@@ -29,7 +29,7 @@ class MyYearPagerAdapter(fm: FragmentManager, val mYears: List<Int>, val mListen
 
     fun refreshEvents(pos: Int) {
         for (i in -1..1) {
-            mFragments[pos + i].updateEvents()
+            mFragments[pos + i]?.updateEvents()
         }
     }
 }