diff --git a/frontend/app/components/ui/ErrorDetails/ErrorDetails.tsx b/frontend/app/components/ui/ErrorDetails/ErrorDetails.tsx
index fe2467f0a..8f8ba65b4 100644
--- a/frontend/app/components/ui/ErrorDetails/ErrorDetails.tsx
+++ b/frontend/app/components/ui/ErrorDetails/ErrorDetails.tsx
@@ -24,7 +24,9 @@ function ErrorDetails(props: Props) {
     };
 
     useEffect(() => {
-        props.fetchErrorStackList(sessionId, error.errorId);
+        if (sessionId) {
+            props.fetchErrorStackList(sessionId, error.errorId);
+        }
     }, []);
 
     return (
diff --git a/frontend/app/duck/customField.js b/frontend/app/duck/customField.js
index d77987d05..dfd8dbf12 100644
--- a/frontend/app/duck/customField.js
+++ b/frontend/app/duck/customField.js
@@ -46,7 +46,7 @@ const reducer = (state = initialState, action = {}) => {
         addElementToFiltersMap(FilterCategory.METADATA, item.key);
         addElementToLiveFiltersMap(FilterCategory.METADATA, item.key);
       });
-      return state;
+      return state.set('list', List(action.data).map(CustomField))
 
     case FETCH_SOURCES_SUCCESS:
       return state.set(