Added a null check for scientific_discipline

web/src/views/Profile.vue

@@ -182,7 +182,7 @@
                       </div>
                       <div class="col-sm-9">
                         <div>
-                          {{ response.scientific_discipline.join(", ") }}
+                          {{ response.scientific_discipline !== null? response.scientific_discipline.join(", "): "" }}
                         </div>
                       </div>
                     </div>