diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java
index 68cb949d..92dd4b55 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java
@@ -118,7 +118,8 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
             this.getRestTemplate().get();
         }
         catch (Exception e) {
-            return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.OPEN_OLAT, "Unspecific error connecting to OLAT API");
+            log.error("Failed to access OLAT course API: ", e);
+            return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.OPEN_OLAT, e.getMessage());
         }
         return LmsSetupTestResult.ofOkay(LmsType.OPEN_OLAT);
     }
@@ -349,9 +350,7 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
 
     @Override
     public Result<Exam> releaseSEBClientRestriction(final Exam exam) {
-        @SuppressWarnings("unused")
         final String quizId = exam.externalId;
-
         return getRestTemplate()
                 .map(t -> this.deleteRestrictionForAssignmentId(t, exam.externalId))
                 .map(x -> exam);
@@ -403,6 +402,7 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
     private Result<OlatLmsRestTemplate> getRestTemplate() {
         return Result.tryCatch(() -> {
             if (this.cachedRestTemplate != null) { return this.cachedRestTemplate; }
+
             final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
             final ClientCredentials credentials = this.apiTemplateDataSupplier.getLmsClientCredentials();
             final ProxyData proxyData = this.apiTemplateDataSupplier.getProxyData();
@@ -425,7 +425,6 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
             template.setRequestFactory(clientHttpRequestFactory);
 
             this.cachedRestTemplate = template;
-
             return this.cachedRestTemplate;
         });
     }
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsRestTemplate.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsRestTemplate.java
index fd2982e5..1f8e11d5 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsRestTemplate.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsRestTemplate.java
@@ -28,7 +28,7 @@ public class OlatLmsRestTemplate extends RestTemplate {
 
     private static final Logger log = LoggerFactory.getLogger(OlatLmsRestTemplate.class);
 
-    public String token;
+    private String token;
     private ClientCredentialsResourceDetails details;
 
     public OlatLmsRestTemplate(ClientCredentialsResourceDetails details) {
@@ -68,8 +68,8 @@ public class OlatLmsRestTemplate extends RestTemplate {
                 details.getClientId(),
                 details.getClientSecret());
         try {
-            ResponseEntity<String> response = this.getForEntity(authUrl, String.class);
-            HttpHeaders responseHeaders = response.getHeaders();
+            final ResponseEntity<String> response = this.getForEntity(authUrl, String.class);
+            final HttpHeaders responseHeaders = response.getHeaders();
             log.debug("OLAT [authenticate] {} Headers: {}", response.getStatusCode(), responseHeaders);
             token = responseHeaders.getFirst("X-OLAT-TOKEN");
         }