diff --git a/src/create/CreateGuesser.tsx b/src/create/CreateGuesser.tsx
index 7d17fbef..ffb3284e 100644
--- a/src/create/CreateGuesser.tsx
+++ b/src/create/CreateGuesser.tsx
@@ -73,6 +73,7 @@ export const IntrospectedCreateGuesser = ({
     mutationOptions,
     transform,
     redirectTo,
+    children: []
   });
 
   const displayOverrideCode = useDisplayOverrideCode();
diff --git a/src/edit/EditGuesser.tsx b/src/edit/EditGuesser.tsx
index cfa5bb81..9151154f 100644
--- a/src/edit/EditGuesser.tsx
+++ b/src/edit/EditGuesser.tsx
@@ -78,6 +78,7 @@ export const IntrospectedEditGuesser = ({
     mutationOptions,
     transform,
     redirectTo,
+    children: []
   });
   useMercureSubscription(resource, id);
 
diff --git a/src/hydra/fetchHydra.ts b/src/hydra/fetchHydra.ts
index 80036057..282f5d1a 100644
--- a/src/hydra/fetchHydra.ts
+++ b/src/hydra/fetchHydra.ts
@@ -72,7 +72,7 @@ function fetchHydra(
           Promise.reject(
             new HttpError(
               (
-                json[0][
+                json[0]?.[
                   'http://www.w3.org/ns/hydra/core#description'
                 ] as JsonLdObj[]
               )?.[0]?.['@value'],