diff --git a/app/build.gradle b/app/build.gradle
index d2f592397..b8b6f0162 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -20,8 +20,8 @@ android {
         testApplicationId "io.github.tests.wulkanowy"
         minSdkVersion 17
         targetSdkVersion 30
-        versionCode 87
-        versionName "1.1.1"
+        versionCode 88
+        versionName "1.1.2"
         multiDexEnabled true
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
@@ -60,7 +60,7 @@ android {
         release {
             minifyEnabled true
             shrinkResources true
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             signingConfig signingConfigs.release
         }
         debug {
@@ -150,7 +150,7 @@ ext {
 }
 
 dependencies {
-    implementation "io.github.wulkanowy:sdk:1.1.1"
+    implementation "io.github.wulkanowy:sdk:1.1.2"
 
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index c83795603..fd9482613 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -23,4 +23,4 @@
 
 
 #Config for Material Components
--keep class com.google.android.material.tabs.** { *; }
\ No newline at end of file
+-keep class com.google.android.material.tabs.** { *; }
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradePresenter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradePresenter.kt
index c467c421e..504c730de 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradePresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradePresenter.kt
@@ -50,7 +50,7 @@ class GradePresenter @Inject constructor(
 
     fun onSemesterSwitch(): Boolean {
         if (semesters.isNotEmpty()) {
-            view?.showSemesterDialog(selectedIndex - 1, semesters.slice(0..1))
+            view?.showSemesterDialog(selectedIndex - 1, semesters.take(2))
         }
         return true
     }
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsFragment.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsFragment.kt
index 18551faa8..7982387df 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsFragment.kt
@@ -57,6 +57,7 @@ class AdditionalLessonsFragment :
             additionalLessonsSwipe.setColorSchemeColors(requireContext().getThemeAttrColor(R.attr.colorPrimary))
             additionalLessonsSwipe.setProgressBackgroundColorSchemeColor(requireContext().getThemeAttrColor(R.attr.colorSwipeRefresh))
             additionalLessonsErrorRetry.setOnClickListener { presenter.onRetry() }
+            additionalLessonsErrorDetails.setOnClickListener { presenter.onDetailsClick() }
 
             additionalLessonsPreviousButton.setOnClickListener { presenter.onPreviousDay() }
             additionalLessonsNavDate.setOnClickListener { presenter.onPickDate() }
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsPresenter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsPresenter.kt
index 623160e7e..21997b33f 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/additional/AdditionalLessonsPresenter.kt
@@ -80,6 +80,10 @@ class AdditionalLessonsPresenter @Inject constructor(
         loadData(currentDate, true)
     }
 
+    fun onDetailsClick() {
+        view?.showErrorDetailsDialog(lastError)
+    }
+
     private fun setBaseDateOnHolidays() {
         flow {
             val student = studentRepository.getCurrentStudent()
diff --git a/app/src/main/play/release-notes/pl-PL/default.txt b/app/src/main/play/release-notes/pl-PL/default.txt
index 2b0af6e5a..8ab595f93 100644
--- a/app/src/main/play/release-notes/pl-PL/default.txt
+++ b/app/src/main/play/release-notes/pl-PL/default.txt
@@ -1,6 +1,6 @@
-Wersja 1.1.1
+Wersja 1.1.2
 
-- naprawiliśmy wyświetlanie planu lekcji
+- naprawiliśmy wyświetlanie planu lekcji i lekcji dodatkowych
 - naprawiliśmy kilka rzadkich problemów ze stabilnością
 
 Pełna lista zmian: https://github.com/wulkanowy/wulkanowy/releases