fix: frontend handle sometimes server not generate the wrong follow up data struct (#7916)

web/app/components/base/chat/chat/hooks.ts

@@ -372,12 +372,17 @@ export const useChat = (
             handleUpdateChatList(newChatList)
           }
           if (config?.suggested_questions_after_answer?.enabled && !hasStopResponded.current && onGetSuggestedQuestions) {
+            try {
               const { data }: any = await onGetSuggestedQuestions(
                 responseItem.id,
                 newAbortController => suggestedQuestionsAbortControllerRef.current = newAbortController,
               )
               setSuggestQuestions(data)
             }
+            catch (e) {
+              setSuggestQuestions([])
+            }
+          }
         },
         onFile(file) {
           const lastThought = responseItem.agent_thoughts?.[responseItem.agent_thoughts?.length - 1]

web/app/components/workflow/panel/debug-and-preview/hooks.ts

@@ -248,12 +248,17 @@ export const useChat = (
           }
 
           if (config?.suggested_questions_after_answer?.enabled && !hasStopResponded.current && onGetSuggestedQuestions) {
+            try {
               const { data }: any = await onGetSuggestedQuestions(
                 responseItem.id,
                 newAbortController => suggestedQuestionsAbortControllerRef.current = newAbortController,
               )
               setSuggestQuestions(data)
             }
+            catch (error) {
+              setSuggestQuestions([])
+            }
+          }
         },
         onMessageEnd: (messageEnd) => {
           responseItem.citation = messageEnd.metadata?.retriever_resources || []