diff --git a/client/src/pages/learningMentor/MentorManagementPage.vue b/client/src/pages/learningMentor/MentorManagementPage.vue
index 2e5a2aa2..6e2473e3 100644
--- a/client/src/pages/learningMentor/MentorManagementPage.vue
+++ b/client/src/pages/learningMentor/MentorManagementPage.vue
@@ -10,11 +10,11 @@ const showInvitationModal = ref(false);
 const inviteeEmail = ref("");
 
 const { execute: refreshMentors, data: mentors } = useCSRFFetch(
-  `/api/mentor/${courseSession.value.course.id}/mentors`
+  `/api/mentor/${courseSession.value.id}/mentors`
 ).json();
 
 const { execute: refreshInvitations, data: invitations } = useCSRFFetch(
-  `/api/mentor/${courseSession.value.course.id}/invitations`
+  `/api/mentor/${courseSession.value.id}/invitations`
 ).json();
 
 const hasMentors = computed(() => {
@@ -31,22 +31,20 @@ const validEmail = computed(() => {
 
 const removeInvitation = async (invitationId: string) => {
   await useCSRFFetch(
-    `/api/mentor/${courseSession.value.course.id}/invitations/${invitationId}/delete`
+    `/api/mentor/${courseSession.value.id}/invitations/${invitationId}/delete`
   ).delete();
   await refreshInvitations();
 };
 
 const removeMentor = async (mentorId: string) => {
   await useCSRFFetch(
-    `/api/mentor/${courseSession.value.course.id}/mentors/${mentorId}/leave`
+    `/api/mentor/${courseSession.value.id}/mentors/${mentorId}/leave`
   ).delete();
   await refreshMentors();
 };
 
 const inviteMentor = async () => {
-  await useCSRFFetch(
-    `/api/mentor/${courseSession.value.course.id}/invitations/create`
-  ).post({
+  await useCSRFFetch(`/api/mentor/${courseSession.value.id}/invitations/create`).post({
     email: inviteeEmail.value,
   });
   await refreshInvitations();
diff --git a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
index 01b7ad51..76b5f8f7 100644
--- a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
+++ b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
@@ -8,7 +8,7 @@ import {
   useCourseSessionDetailQuery,
   useCurrentCourseSession,
 } from "@/composables";
-import { bustItGetCache } from "@/fetchHelpers";
+import { bustItGetCache, useCSRFFetch } from "@/fetchHelpers";
 import { UPSERT_ASSIGNMENT_COMPLETION_MUTATION } from "@/graphql/mutations";
 import AssignmentSubmissionResponses from "@/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionResponses.vue";
 import { useUserStore } from "@/stores/user";
@@ -61,6 +61,10 @@ const circleExpert = computed(() => {
   return circleExperts.value[0];
 });
 
+const { data: learningMentors } = useCSRFFetch(
+  `/api/mentor/${courseSession.value.id}/mentors`
+).json();
+
 const circleExpertName = computed(() => {
   return `${circleExpert.value?.first_name} ${circleExpert.value?.last_name}`;
 });
@@ -156,7 +160,6 @@ const onSubmit = async () => {
       ></ItCheckbox>
       <div v-if="mayBeEvaluated" class="w-full border-b border-gray-400">
         <ItCheckbox
-          v-if="mayBeEvaluated"
           class="py-6"
           :checkbox-item="{
             label: isPraxisAssignment
@@ -178,6 +181,9 @@ const onSubmit = async () => {
             {{ circleExpertName }}
           </p>
         </div>
+        <div>
+          {{ learningMentors }}
+        </div>
         <!-- TODO: find way to find user that will do the corrections -->
       </div>
       <div v-if="isCasework" class="flex flex-col space-x-2 pt-6 text-base sm:flex-row">
diff --git a/server/vbv_lernwelt/learning_mentor/serializers.py b/server/vbv_lernwelt/learning_mentor/serializers.py
index a3ab9236..6cf36b65 100644
--- a/server/vbv_lernwelt/learning_mentor/serializers.py
+++ b/server/vbv_lernwelt/learning_mentor/serializers.py
@@ -31,7 +31,7 @@ class InvitationSerializer(serializers.ModelSerializer):
     def create(self, validated_data):
         participant = self.context["course_session_user"]
         invitation, _ = MentorInvitation.objects.get_or_create(
-            email=validated_data["email"], defaults={"participant": participant}
+            email=validated_data["email"], participant=participant
         )
         return invitation