diff --git a/src/renderer/src/hooks/useProvider.ts b/src/renderer/src/hooks/useProvider.ts
index 9fac27da..3b474292 100644
--- a/src/renderer/src/hooks/useProvider.ts
+++ b/src/renderer/src/hooks/useProvider.ts
@@ -47,7 +47,7 @@ export function useProvider(id: string) {
 
   return {
     provider,
-    models: provider.models,
+    models: provider?.models || [],
     updateProvider: (provider: Provider) => dispatch(updateProvider(provider)),
     addModel: (model: Model) => dispatch(addModel({ providerId: id, model })),
     removeModel: (model: Model) => dispatch(removeModel({ providerId: id, model }))
diff --git a/src/renderer/src/utils/index.ts b/src/renderer/src/utils/index.ts
index 017cfcf9..1aa3f91b 100644
--- a/src/renderer/src/utils/index.ts
+++ b/src/renderer/src/utils/index.ts
@@ -94,7 +94,7 @@ export function droppableReorder<T>(list: T[], startIndex: number, endIndex: num
 }
 
 export function firstLetter(str: string): string {
-  const match = str.match(/\p{L}\p{M}*|\p{Emoji_Presentation}|\p{Emoji}\uFE0F/u)
+  const match = str?.match(/\p{L}\p{M}*|\p{Emoji_Presentation}|\p{Emoji}\uFE0F/u)
   return match ? match[0] : ''
 }