Добавил случаев в extrareducers

front/src/features/catalog/catalogSlice.ts

@@ -67,15 +67,27 @@ const catalogSlice = createSlice({
         state.loading = false;
         state.products = action.payload;
         state.filtered = action.payload;
+        state.error = null;
+      })
+      .addCase(fetchProductsByCategory.rejected, (state, action) => {
+        state.loading = false;
+        state.error = action.error.message || "Ошибка загрузки товаров";
+        state.products = [];
+        state.filtered = [];
+      })
+      .addCase(fetchCategoryParameters.pending, (state) => {
+        state.loading = true;
+        state.error = null;
       })
       .addCase(fetchCategoryParameters.fulfilled, (state, action) => {
         state.loading = false;
         state.filters = action.payload
       })
-      /*.addCase(getCategoryProducts.rejected, (state, action) => {
+      .addCase(fetchCategoryParameters.rejected, (state, action) => {
         state.loading = false;
-        state.error = action.error.message || "Ошибка загрузки данных";
-      });*/
+        state.error = action.error.message || "Ошибка загрузки параметров категории";
+        state.filters = {};
+      });
   },
 });