diff --git a/front/app/orgs/[orgslug]/(withmenu)/course/[courseid]/course.tsx b/front/app/orgs/[orgslug]/(withmenu)/course/[courseid]/course.tsx
index 865748d6..41c999b1 100644
--- a/front/app/orgs/[orgslug]/(withmenu)/course/[courseid]/course.tsx
+++ b/front/app/orgs/[orgslug]/(withmenu)/course/[courseid]/course.tsx
@@ -27,7 +27,7 @@ const CourseClient = (props: any) => {
     router.refresh();
 
     // refresh page (FIX for Next.js BUG)
-   // window.location.reload();
+    // window.location.reload();
   }
 
   async function quitCourse() {
@@ -62,7 +62,7 @@ const CourseClient = (props: any) => {
 
           <ActivityIndicators course_id={props.course.course.course_id} orgslug={orgslug} course={course} />
 
-          <div className="flex flex-row pt-10 flex-wrap">
+          <div className="flex flex-row pt-10">
             <div className="course_metadata_left grow space-y-2">
               <h2 className="py-3 text-2xl font-bold">Description</h2>
               <StyledBox>
diff --git a/src/routers/trail.py b/src/routers/trail.py
index aac85c77..f2eb38b5 100644
--- a/src/routers/trail.py
+++ b/src/routers/trail.py
@@ -1,6 +1,6 @@
 from fastapi import APIRouter, Depends, Request
 from src.security.auth import get_current_user
-from src.services.trail import Trail, add_activity_to_trail, add_course_to_trail,  create_trail, get_user_trail_with_orgslug, get_user_trail, remove_course_from_trail
+from src.services.trail.trail import Trail, add_activity_to_trail, add_course_to_trail,  create_trail, get_user_trail_with_orgslug, get_user_trail, remove_course_from_trail
 
 
 router = APIRouter()
diff --git a/src/services/trail/__init__.py b/src/services/trail/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/services/trail.py b/src/services/trail/trail.py
similarity index 93%
rename from src/services/trail.py
rename to src/services/trail/trail.py
index 30e86143..08e38700 100644
--- a/src/services/trail.py
+++ b/src/services/trail/trail.py
@@ -172,6 +172,12 @@ async def add_activity_to_trail(
         {"user_id": user.user_id, "courses.course_id": courseid, "org_id": org_id}
     )
 
+    if user.user_id == "anonymous":
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Anonymous users cannot add activity to trail",
+        )
+
     if not trail:
         return Trail(masked=False, courses=[])
 
@@ -201,7 +207,13 @@ async def add_course_to_trail(
 ) -> Trail:
     trails = request.app.db["trails"]
     orgs = request.app.db["organizations"]
-    
+
+    if user.user_id == "anonymous":
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Anonymous users cannot add activity to trail",
+        )
+
     org = await orgs.find_one({"slug": orgslug})
 
     org = PublicOrganization(**org)
@@ -247,6 +259,12 @@ async def remove_course_from_trail(
     trails = request.app.db["trails"]
     orgs = request.app.db["organizations"]
 
+    if user.user_id == "anonymous":
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Anonymous users cannot add activity to trail",
+        )
+
     org = await orgs.find_one({"slug": orgslug})
 
     org = PublicOrganization(**org)