diff --git a/server/src/plugins/service-admin-http/index.ts b/server/src/plugins/service-admin-http/index.ts
index 689ebe9..3aeb3d0 100644
--- a/server/src/plugins/service-admin-http/index.ts
+++ b/server/src/plugins/service-admin-http/index.ts
@@ -208,9 +208,17 @@ export class Plugin extends BSBService<InstanceType<typeof Config>, typeof Event
         event.context.obs = reqObs;
       },
       onError: (error, event) => {
-        const reqObs = event.context.obs ?? obs;
+        const reqObs = event.context.obs;
         const status = error.status ?? 500;
         const path = event.req.url ?? "unknown";
+        if (!reqObs) {
+          obs.log.error("HTTP {status} {path}: {err} (no request trace)", {
+            status,
+            path,
+            err: error.message ?? String(error),
+          });
+          return;
+        }
         if (status >= 500) {
           reqObs.log.error("HTTP {status} {path}: {err}", {
             status,
diff --git a/server/src/plugins/service-api-http/index.ts b/server/src/plugins/service-api-http/index.ts
index 1a4263f..b3e2799 100644
--- a/server/src/plugins/service-api-http/index.ts
+++ b/server/src/plugins/service-api-http/index.ts
@@ -177,9 +177,17 @@ export class Plugin extends BSBService<InstanceType<typeof Config>, typeof Event
         event.context.obs = reqObs;
       },
       onError: (error, event) => {
-        const reqObs = event.context.obs ?? obs;
+        const reqObs = event.context.obs;
         const status = error.status ?? 500;
         const path = event.req.url ?? "unknown";
+        if (!reqObs) {
+          obs.log.error("HTTP {status} {path}: {err} (no request trace)", {
+            status,
+            path,
+            err: error.message ?? String(error),
+          });
+          return;
+        }
         if (status >= 500) {
           reqObs.log.error("HTTP {status} {path}: {err}", {
             status,