diff --git a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt
index 3d56e9a..b46b281 100644
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt
@@ -37,6 +37,7 @@ import java.io.BufferedReader
 import java.io.File
 import java.io.FileReader
 import java.util.*
+import kotlin.Exception
 import kotlin.collections.ArrayList
 
 class CacheController(cont: Context) {
@@ -168,10 +169,30 @@ class CacheController(cont: Context) {
      * @param courseName the course name (e.g AI1)
      */
     private fun readStartCache(courseName: String) {
-        readCoursesList(context)
-        readMensa(context)
-        readTimetable(courseName, 0, context)
-        readTimetable(courseName, 1, context)
+        try {
+            readCoursesList(context)
+        } catch (e : Exception) {
+            Log.e(className, "Error while reading the course list", e)
+        }
+
+        try {
+            readMensa(context)
+        } catch (e : Exception) {
+            Log.e(className, "Error while reading the mensa menu", e)
+        }
+
+        try {
+            readTimetable(courseName, 0, context)
+        } catch (e : Exception) {
+            Log.e(className, "Error while reading timetable week 0", e)
+        }
+
+        try {
+            readTimetable(courseName, 1, context)
+        } catch (e : Exception) {
+            Log.e(className, "Error while reading timetable week 1", e)
+        }
+
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/TimeTableFragment.kt b/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/TimeTableFragment.kt
index 60cabb0..93d2385 100644
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/TimeTableFragment.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/TimeTableFragment.kt
@@ -62,7 +62,7 @@ class TimeTableFragment : Fragment() {
         // init actions
         initActions()
 
-        if (timetables[0].timetable.days.isNotEmpty() && timetables[1].timetable.days.isNotEmpty()) {
+        if (timetables.size > 1 && timetables[0].timetable.days.isNotEmpty() && timetables[1].timetable.days.isNotEmpty()) {
             initTimetable()
         } else {
             MaterialDialog(context!!)