Leftovers from the previous commit

src/components/ExamEditor/Shared/ExercisePicker/index.tsx

@@ -28,7 +28,7 @@ const ExercisePicker: React.FC<ExercisePickerProps> = ({
 
     const [pickerOpen, setPickerOpen] = useState(false);
 
-    if (section === undefined) return;
+    if (section === undefined) return <></>;
 
     const { state, selectedExercises } = section;
 

src/components/ExamEditor/Shared/ImportExam/WordUploader.tsx

@@ -112,7 +112,7 @@ const WordUploader: React.FC<{ module: Module }> = ({ module }) => {
                 }
             }
         } catch (error) {
-            toast.error(`An unknown error has occured while import ${module} exam!`);
+            toast.error(`Make sure you've imported a valid word document (.docx)!`);
         } finally {
             dispatch({ type: "UPDATE_MODULE", payload: { updates: { importing: false }, module } })
         }