diff --git a/server/server.ts b/server/server.ts
index 5e90deb..4b09c86 100644
--- a/server/server.ts
+++ b/server/server.ts
@@ -647,7 +647,7 @@ const requestsLimiter = rateLimit({
                             }
 
                             const blockInfo = await Block.findOne({
-                                where: { tx_id: data.result.tx_info.keeper_block },
+                                where: { tx_id: data.result?.tx_info?.keeper_block?.toString() },
                             });
 
                             res.json({