fix cursor

Author: Marius

src/Http/Controllers/ResourceControllerTrait.php

@@ -230,7 +230,7 @@ protected function getJsonResponse(
     ): JsonResponse {
         return GeneralHelper::app(JsonResponse::class, [
             'data' => \array_merge($paginator instanceof CursorPaginator ? [
-                'cursor' => $paginator->nextCursor()->encode(),
+                'cursor' => $paginator->nextCursor()?->encode(),
             ] : [], [
                 'has_more_pages' => $paginator->hasMorePages(),
             ], $appends, GeneralHelper::filterDataByKeys(