src/pages/sign/index.tsx

@@ -536,7 +536,11 @@ export const SignPage = () => {
     setIsLoading(true)
     const arrayBuffer = await decrypt(selectedFile)
 
-    if (!arrayBuffer) return
+    if (!arrayBuffer) {
+      setIsLoading(false)
+      toast.error('Error decrypting file')
+      return
+    }
 
     handleDecryptedArrayBuffer(arrayBuffer)
   }