diff --git a/src/main/java/ch/ethz/seb/sebserver/gbl/util/Result.java b/src/main/java/ch/ethz/seb/sebserver/gbl/util/Result.java
index 41acee38..9d1f238d 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gbl/util/Result.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gbl/util/Result.java
@@ -141,7 +141,7 @@ public final class Result<T> {
             if (this.error instanceof RuntimeException) {
                 throw (RuntimeException) this.error;
             } else {
-                throw new RuntimeException("RuntimeExceptionWrapper cause: ", this.error);
+                throw new RuntimeException("RuntimeExceptionWrapper cause: " + this.error.getMessage(), this.error);
             }
         }
 
diff --git a/src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/PageAction.java b/src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/PageAction.java
index 1c78953e..03149686 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/PageAction.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/PageAction.java
@@ -185,6 +185,9 @@ public final class PageAction {
             } catch (final PageMessageException pme) {
                 PageAction.this.pageContext.publishPageMessage(pme);
                 return;
+            } catch (final Exception e) {
+                this.pageContext.notifyUnexpectedError(e);
+                return;
             }
         } else {
             callback.accept(exec());
diff --git a/src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCall.java b/src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCall.java
index 8f1dd4c2..483e48cf 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCall.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCall.java
@@ -180,7 +180,7 @@ public abstract class RestCall<T> {
                     e,
                     "NO RESPONSE AVAILABLE",
                     String.valueOf(builder)));
-            return Result.ofError(e);
+            return Result.ofError(restCallError);
         }
     }
 
@@ -216,6 +216,10 @@ public abstract class RestCall<T> {
             } else {
                 restCallError.errors.add(APIMessage.ErrorMessage.GENERIC.of(responseEntity.getBody()));
             }
+        } catch (final Exception e) {
+            final String body = responseEntity.getBody();
+            log.error("Failed to parse rest response error message: {}", body);
+            throw e;
         }
 
         log.debug(
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/mockup/MockCourseAccessAPI.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/mockup/MockCourseAccessAPI.java
index c8bf545a..0b44709a 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/mockup/MockCourseAccessAPI.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/mockup/MockCourseAccessAPI.java
@@ -63,7 +63,8 @@ public class MockCourseAccessAPI implements CourseAccessAPI {
                 "quiz1", institutionId, lmsSetupId, lmsType, "Demo Quiz 1 (MOCKUP)", "<p>Demo Quiz Mockup</p>",
                 "2020-01-01T09:00:00Z", null, "http://lms.mockup.com/api/"));
         this.mockups.add(new QuizData(
-                "quiz2", institutionId, lmsSetupId, lmsType, "Demo Quiz 2 (MOCKUP)", "<p>Demo Quiz Mockup</p>",
+                "quiz2", institutionId, lmsSetupId, lmsType, "Demo Quiz 2 (MOCKUP) &sd;+1 äöüèÜÄÖ ?<",
+                "<p>Demo Quiz Mockup &sd;+1 äöüèÜÄÖ ?<</p>",
                 "2020-01-01T09:00:00Z", "2025-01-01T09:00:00Z", "http://lms.mockup.com/api/"));
         this.mockups.add(new QuizData(
                 "quiz3", institutionId, lmsSetupId, lmsType, "Demo Quiz 3 (MOCKUP)", "<p>Demo Quiz Mockup</p>",
diff --git a/src/test/java/ch/ethz/seb/sebserver/gui/integration/UseCasesIntegrationTest.java b/src/test/java/ch/ethz/seb/sebserver/gui/integration/UseCasesIntegrationTest.java
index 6d62f73d..e8d72124 100644
--- a/src/test/java/ch/ethz/seb/sebserver/gui/integration/UseCasesIntegrationTest.java
+++ b/src/test/java/ch/ethz/seb/sebserver/gui/integration/UseCasesIntegrationTest.java
@@ -1578,7 +1578,7 @@ public class UseCasesIntegrationTest extends GuiIntegrationTest {
 
             fail("Exception expected here");
         } catch (final Exception e) {
-            assertEquals("argument \"content\" is null", e.getMessage());
+            assertEquals("Unexpected error while rest call", e.getMessage());
         }
 
         // test follow-up integrity violation
@@ -1596,7 +1596,7 @@ public class UseCasesIntegrationTest extends GuiIntegrationTest {
 
             fail("Exception expected here");
         } catch (final Exception e) {
-            assertEquals("argument \"content\" is null", e.getMessage());
+            assertEquals("Unexpected error while rest call", e.getMessage());
         }
 
         final ConfigurationTableValues newTableValue = new ConfigurationTableValues(