diff --git a/api/core/model_runtime/model_providers/siliconflow/siliconflow.py b/api/core/model_runtime/model_providers/siliconflow/siliconflow.py
index e121ab8c7e4e2f..03c4306144a651 100644
--- a/api/core/model_runtime/model_providers/siliconflow/siliconflow.py
+++ b/api/core/model_runtime/model_providers/siliconflow/siliconflow.py
@@ -18,7 +18,7 @@ def validate_provider_credentials(self, credentials: dict) -> None:
         try:
             model_instance = self.get_model_instance(ModelType.LLM)
 
-            model_instance.validate_credentials(model="deepseek-ai/DeepSeek-V2-Chat", credentials=credentials)
+            model_instance.validate_credentials(model="deepseek-ai/DeepSeek-V2.5", credentials=credentials)
         except CredentialsValidateFailedError as ex:
             raise ex
         except Exception as ex:
diff --git a/api/core/rag/embedding/cached_embedding.py b/api/core/rag/embedding/cached_embedding.py
index fc8e0440c332c3..652f7e145fd94d 100644
--- a/api/core/rag/embedding/cached_embedding.py
+++ b/api/core/rag/embedding/cached_embedding.py
@@ -65,6 +65,11 @@ def embed_documents(self, texts: list[str]) -> list[list[float]]:
                     for vector in embedding_result.embeddings:
                         try:
                             normalized_embedding = (vector / np.linalg.norm(vector)).tolist()
+                            # stackoverflow best way: https://stackoverflow.com/questions/20319813/how-to-check-list-containing-nan
+                            if np.isnan(normalized_embedding).any():
+                                # for issue #11827  float values are not json compliant
+                                logger.warning(f"Normalized embedding is nan: {normalized_embedding}")
+                                continue
                             embedding_queue_embeddings.append(normalized_embedding)
                         except IntegrityError:
                             db.session.rollback()
diff --git a/web/app/components/tools/add-tool-modal/empty.tsx b/web/app/components/tools/add-tool-modal/empty.tsx
index 051ae446d4cb0f..794d2a585c1379 100644
--- a/web/app/components/tools/add-tool-modal/empty.tsx
+++ b/web/app/components/tools/add-tool-modal/empty.tsx
@@ -1,13 +1,19 @@
+'use client'
+import { useSearchParams } from 'next/navigation'
 import { useTranslation } from 'react-i18next'
-
 const Empty = () => {
   const { t } = useTranslation()
+  const searchParams = useSearchParams()
 
   return (
     <div className='flex flex-col items-center'>
       <div className="shrink-0 w-[163px] h-[149px] bg-cover bg-no-repeat bg-[url('~@/app/components/tools/add-tool-modal/empty.png')]"></div>
-      <div className='mb-1 text-[13px] font-medium text-text-primary leading-[18px]'>{t('tools.addToolModal.emptyTitle')}</div>
-      <div className='text-[13px] text-text-tertiary leading-[18px]'>{t('tools.addToolModal.emptyTip')}</div>
+      <div className='mb-1 text-[13px] font-medium text-text-primary leading-[18px]'>
+        {t(`tools.addToolModal.${searchParams.get('category') === 'workflow' ? 'emptyTitle' : 'emptyTitleCustom'}`)}
+      </div>
+      <div className='text-[13px] text-text-tertiary leading-[18px]'>
+        {t(`tools.addToolModal.${searchParams.get('category') === 'workflow' ? 'emptyTip' : 'emptyTipCustom'}`)}
+      </div>
     </div>
   )
 }
diff --git a/web/i18n/en-US/tools.ts b/web/i18n/en-US/tools.ts
index f96ae8144e0278..b1f278f9cea2a9 100644
--- a/web/i18n/en-US/tools.ts
+++ b/web/i18n/en-US/tools.ts
@@ -31,6 +31,8 @@ const translation = {
     manageInTools: 'Manage in Tools',
     emptyTitle: 'No workflow tool available',
     emptyTip: 'Go to "Workflow -> Publish as Tool"',
+    emptyTitleCustom: 'No custom tool available',
+    emptyTipCustom: 'Create a custom tool',
   },
   createTool: {
     title: 'Create Custom Tool',
diff --git a/web/i18n/zh-Hans/tools.ts b/web/i18n/zh-Hans/tools.ts
index 1473fc23d38fca..a788ef0abee445 100644
--- a/web/i18n/zh-Hans/tools.ts
+++ b/web/i18n/zh-Hans/tools.ts
@@ -31,6 +31,8 @@ const translation = {
     manageInTools: '去工具列表管理',
     emptyTitle: '没有可用的工作流工具',
     emptyTip: '去 “工作流 -> 发布为工具” 添加',
+    emptyTitleCustom: '没有可用的自定义工具',
+    emptyTipCustom: '创建自定义工具',
   },
   createTool: {
     title: '创建自定义工具',