diff --git a/app/src/main/java/foundation/e/advancedprivacy/domain/usecases/WeeklyReportUseCase.kt b/app/src/main/java/foundation/e/advancedprivacy/domain/usecases/WeeklyReportUseCase.kt
index 94d04a56daf35e3a1472248f21876a916966dac2..1d5535b1ee8c7d3abd4597bb89f83f7fccd4454f 100644
--- a/app/src/main/java/foundation/e/advancedprivacy/domain/usecases/WeeklyReportUseCase.kt
+++ b/app/src/main/java/foundation/e/advancedprivacy/domain/usecases/WeeklyReportUseCase.kt
@@ -110,7 +110,12 @@ class WeeklyReportUseCase(
 
     private suspend fun addCallPerAppCandidates(candidates: MutableList<WeeklyReport>, endOfWeek: Instant) {
         val startOfWeek = getStartOfWeek(endOfWeek)
-        val (appIdWithMostCalls, callsPerWeek) = statsDatabase.getCallsByAppIds(startOfWeek, endOfWeek).maxBy { it.value }
+        val callsByAppIds = statsDatabase.getCallsByAppIds(startOfWeek, endOfWeek)
+        if (callsByAppIds.isEmpty()) {
+            return
+        }
+
+        val (appIdWithMostCalls, callsPerWeek) = callsByAppIds.maxBy { it.value }
         val app = appListRepository.getAppById(appIdWithMostCalls)?.id
 
         // TODO: get second one on fail ?
diff --git a/app/src/main/java/foundation/e/advancedprivacy/features/debug/DebugWeeklyReportFragment.kt b/app/src/main/java/foundation/e/advancedprivacy/features/debug/DebugWeeklyReportFragment.kt
index 57453f3b85b6081f6a2e2dfa6736b04ee9156fdc..c1105a27dab1f40074303070497979bf8a9dcbad 100644
--- a/app/src/main/java/foundation/e/advancedprivacy/features/debug/DebugWeeklyReportFragment.kt
+++ b/app/src/main/java/foundation/e/advancedprivacy/features/debug/DebugWeeklyReportFragment.kt
@@ -183,7 +183,7 @@ class DebugWeeklyReportFragment : Fragment(R.layout.debug_weekly_report_fragment
         val timestamp = Instant.now()
 
         // Call Per App
-        val anyApp = appListRepository.displayableApps.value.first()
+        val anyApp = appListRepository.displayableApps.value.firstOrNull() ?: return emptyList()
         val callsPerWeek = Random.nextInt(10000)
 
         val hoursInWeek = 7 * 24