diff --git a/packages/cookie-banner/src/client.ts b/packages/cookie-banner/src/client.ts
index 37d7a0434..f44d79a0a 100644
--- a/packages/cookie-banner/src/client.ts
+++ b/packages/cookie-banner/src/client.ts
@@ -120,6 +120,7 @@ export class CookieBannerClient {
     try {
       config = await fetchJSON<BannerConfig>(configUrl);
     } catch {
+      this.startDetector();
       return;
     }
     this.bannerConfig = config;
@@ -324,12 +325,14 @@ export class CookieBannerClient {
     this.observer = observeAndActivate(consentData, categoryLabels, texts);
   }
 
-  private startDetector(config: BannerConfig): void {
+  private startDetector(config?: BannerConfig): void {
     const knownNames = new Set<string>();
     knownNames.add(COOKIE_NAME);
-    for (const cat of config.categories) {
-      for (const cookie of cat.cookies) {
-        knownNames.add(cookie.name);
+    if (config) {
+      for (const cat of config.categories) {
+        for (const cookie of cat.cookies) {
+          knownNames.add(cookie.name);
+        }
       }
     }
 
diff --git a/packages/cookie-banner/src/detector.ts b/packages/cookie-banner/src/detector.ts
index b706ea20f..cf267028d 100644
--- a/packages/cookie-banner/src/detector.ts
+++ b/packages/cookie-banner/src/detector.ts
@@ -13,6 +13,7 @@
 // PERFORMANCE OF THIS SOFTWARE.
 
 import { isDeletion, parseCookieName, parseMaxAgeSeconds } from "./cookie-utils";
+import { NotFoundError } from "./errors";
 import { fetchJSON } from "./http";
 
 interface DetectedCookieEntry {
@@ -140,7 +141,11 @@ export class CookieDetector {
     void fetchJSON(this.reportUrl, {
       method: "POST",
       body: { cookies: entries },
-    }).catch(() => {});
+    }).catch((err) => {
+      if (err instanceof NotFoundError) {
+        this.stop();
+      }
+    });
 
     if (this.pending.size > 0) {
       this.scheduleFlush();
diff --git a/pkg/cookiebanner/service.go b/pkg/cookiebanner/service.go
index 1c4ea33ca..927695ad5 100644
--- a/pkg/cookiebanner/service.go
+++ b/pkg/cookiebanner/service.go
@@ -2202,16 +2202,16 @@ func (s *Service) ReportDetectedCookies(
 	return s.pg.WithTx(
 		ctx,
 		func(ctx context.Context, tx pg.Tx) error {
+			scope := coredata.NewScopeFromObjectID(bannerID)
+
 			var banner coredata.CookieBanner
-			if err := banner.LoadActiveByID(ctx, tx, bannerID); err != nil {
+			if err := banner.LoadByID(ctx, tx, scope, bannerID); err != nil {
 				if errors.Is(err, coredata.ErrResourceNotFound) {
 					return ErrBannerNotFound
 				}
-				return fmt.Errorf("cannot load active cookie banner: %w", err)
+				return fmt.Errorf("cannot load cookie banner: %w", err)
 			}
 
-			scope := coredata.NewScopeFromObjectID(banner.ID)
-
 			var uncategorised coredata.CookieCategory
 			if err := uncategorised.LoadUncategorisedByCookieBannerID(ctx, tx, scope, banner.ID); err != nil {
 				return fmt.Errorf("cannot load uncategorised category: %w", err)