diff --git a/flake-module.nix b/flake-module.nix
index ee0429082..2bab04658 100644
--- a/flake-module.nix
+++ b/flake-module.nix
@@ -8,7 +8,7 @@
     ...
   }: let
     # this change on each change of dependencies, unfortunately this hash not yet automatically updated from SRI of package.lock
-    npmDepsHash = "sha256-zJZeKIwYJF2JAeBPTyMgbxZkKR4t2hMQyzu/m3PDDAE=";
+    npmDepsHash = "sha256-ruo1UWlwlKxhfh7/PWgYSakFhe8Q8Q+9bg7uPDqnLNI=";
     ####
 
     # there is officia polkadot on nixpkgs, but it has no local rococo wasm to run
diff --git a/javascript/packages/orchestrator/src/test-runner/assertions.ts b/javascript/packages/orchestrator/src/test-runner/assertions.ts
index 3e3f87f5d..6a7908936 100644
--- a/javascript/packages/orchestrator/src/test-runner/assertions.ts
+++ b/javascript/packages/orchestrator/src/test-runner/assertions.ts
@@ -22,6 +22,8 @@ import { NetworkNode } from "../networkNode";
 import { FnArgs } from "../types";
 const utilCrypto = require("@polkadot/util-crypto");
 
+const debug = require("debug")("zombie::test-runner");
+
 const DEFAULT_INDIVIDUAL_TEST_TIMEOUT = 10; // seconds
 
 // helper
@@ -296,10 +298,12 @@ const CustomJs = ({
       connect,
       registerParachain,
     };
-    const jsScript = await import(resolvedJsFilePath);
 
     let values;
     try {
+      // import user defined code
+      const jsScript = await import(resolvedJsFilePath);
+
       const resp: any = await Promise.race([
         Promise.all(
           nodes.map((node: any) =>
@@ -323,6 +327,8 @@ const CustomJs = ({
           `Error running script: ${file_path!}`,
         )} \t ${decorators.bright(err.message)}\n`,
       );
+
+      debug(err.stack || "can't print the stack");
       throw new Error(err);
     }