diff --git a/app/build.gradle b/app/build.gradle
index ad21005e..1387ff0a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,7 +14,7 @@ android {
         applicationId "com.apps.adrcotfas.goodtime"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 136
+        versionCode 137
         versionName "2.5.0"
         resConfigs "ar-rSA",
                 "bn-rBD",
diff --git a/app/src/main/java/com/apps/adrcotfas/goodtime/statistics/main/StatisticsFragment.kt b/app/src/main/java/com/apps/adrcotfas/goodtime/statistics/main/StatisticsFragment.kt
index 2224defb..4f04a7bc 100644
--- a/app/src/main/java/com/apps/adrcotfas/goodtime/statistics/main/StatisticsFragment.kt
+++ b/app/src/main/java/com/apps/adrcotfas/goodtime/statistics/main/StatisticsFragment.kt
@@ -786,6 +786,7 @@ class StatisticsFragment : Fragment() {
                 ChartMarker.MarkerType.PERCENTAGE
             )
             setScaleEnabled(false)
+            //TODO: do we need these here?
             invalidate()
             notifyDataSetChanged()
         }
@@ -822,7 +823,7 @@ class StatisticsFragment : Fragment() {
             }
             for (i in sessionsPerProductiveTimeType.indices) {
                 values[i] =
-                    BarEntry(i.toFloat(), sessionsPerProductiveTimeType[i].toFloat() / totalTime)
+                    BarEntry(i.toFloat(), if (totalTime == 0L) 0f else sessionsPerProductiveTimeType[i].toFloat() / totalTime)
             }
 
         } else if (productiveTimeType == SpinnerStatsType.NR_OF_SESSIONS) {