diff --git a/packages/producer/src/server.ts b/packages/producer/src/server.ts
index e975be84c..2f18bca63 100644
--- a/packages/producer/src/server.ts
+++ b/packages/producer/src/server.ts
@@ -391,7 +391,7 @@ export function createRenderHandlers(options: HandlerOptions = {}): RenderHandle
   };
 
   const outputs = (c: Context): Response => {
-    const token = c.req.param("token");
+    const token = c.req.param("token") ?? "";
     const artifact = store.get(token);
     if (!artifact) {
       return c.json({ success: false, error: "Output artifact not found or expired" }, 404);
diff --git a/packages/producer/src/services/renderOrchestrator.ts b/packages/producer/src/services/renderOrchestrator.ts
index d179e0da4..46d0fced9 100644
--- a/packages/producer/src/services/renderOrchestrator.ts
+++ b/packages/producer/src/services/renderOrchestrator.ts
@@ -882,7 +882,8 @@ export async function executeRenderJob(
       job.error = error instanceof Error ? error.message : "render_cancelled";
       updateJobStatus(job, "cancelled", "Render cancelled", job.progress, onProgress);
       if (fileServer) {
-        await safeCleanup("close file server (cancel)", () => { fileServer.close(); }, log);
+        const fs = fileServer;
+        await safeCleanup("close file server (cancel)", () => { fs.close(); }, log);
       }
       if (probeSession) {
         const session = probeSession;
@@ -925,7 +926,8 @@ export async function executeRenderJob(
 
     // Cleanup
     if (fileServer) {
-      await safeCleanup("close file server (error)", () => { fileServer.close(); }, log);
+      const fs = fileServer;
+      await safeCleanup("close file server (error)", () => { fs.close(); }, log);
     }
     if (probeSession) {
       const session = probeSession;