diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41895b842..7636f30e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Improved the language localization for Catalan (`ca`)
 
+### Fixed
+
+- Fixed an issue with the locale in the scraper configuration
+
 ## 2.174.0 - 2025-06-24
 
 ### Added
diff --git a/apps/api/src/app/admin/admin.controller.ts b/apps/api/src/app/admin/admin.controller.ts
index 82524ef9b..8531cf95c 100644
--- a/apps/api/src/app/admin/admin.controller.ts
+++ b/apps/api/src/app/admin/admin.controller.ts
@@ -17,7 +17,8 @@ import {
   AdminData,
   AdminMarketData,
   AdminUsers,
-  EnhancedSymbolProfile
+  EnhancedSymbolProfile,
+  ScraperConfiguration
 } from '@ghostfolio/common/interfaces';
 import { permissions } from '@ghostfolio/common/permissions';
 import type {
@@ -222,13 +223,12 @@ export class AdminController {
   @Post('market-data/:dataSource/:symbol/test')
   @UseGuards(AuthGuard('jwt'), HasPermissionGuard)
   public async testMarketData(
-    @Body() data: { scraperConfiguration: string },
+    @Body() data: { scraperConfiguration: ScraperConfiguration },
     @Param('dataSource') dataSource: DataSource,
     @Param('symbol') symbol: string
   ): Promise<{ price: number }> {
     try {
-      const scraperConfiguration = JSON.parse(data.scraperConfiguration);
-      const price = await this.manualService.test(scraperConfiguration);
+      const price = await this.manualService.test(data.scraperConfiguration);
 
       if (price) {
         return { price };
diff --git a/apps/api/src/services/data-provider/manual/manual.service.ts b/apps/api/src/services/data-provider/manual/manual.service.ts
index 66e625e47..bcaa77a17 100644
--- a/apps/api/src/services/data-provider/manual/manual.service.ts
+++ b/apps/api/src/services/data-provider/manual/manual.service.ts
@@ -104,7 +104,7 @@ export class ManualService implements DataProviderInterface {
         }
 
         return historical;
-      } else if (selector === undefined || url === undefined) {
+      } else if (!selector || !url) {
         return {};
       }
 
@@ -162,7 +162,11 @@ export class ManualService implements DataProviderInterface {
 
       const symbolProfilesWithScraperConfigurationAndInstantMode =
         symbolProfiles.filter(({ scraperConfiguration }) => {
-          return scraperConfiguration?.mode === 'instant';
+          return (
+            scraperConfiguration?.mode === 'instant' &&
+            scraperConfiguration?.selector &&
+            scraperConfiguration?.url
+          );
         });
 
       const scraperResultPromises =
diff --git a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
index d9b344699..c52d9137d 100644
--- a/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
+++ b/apps/client/src/app/components/admin-market-data/asset-profile-dialog/asset-profile-dialog.component.ts
@@ -11,6 +11,7 @@ import {
   AdminMarketDataDetails,
   AssetProfileIdentifier,
   LineChartItem,
+  ScraperConfiguration,
   User
 } from '@ghostfolio/common/interfaces';
 import { translate } from '@ghostfolio/ui/i18n';
@@ -41,6 +42,7 @@ import {
   AssetClass,
   AssetSubClass,
   MarketData,
+  Prisma,
   SymbolProfile
 } from '@prisma/client';
 import { format } from 'date-fns';
@@ -343,7 +345,10 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
 
   public async onSubmitAssetProfileForm() {
     let countries = [];
-    let scraperConfiguration = {};
+    let scraperConfiguration: ScraperConfiguration = {
+      selector: '',
+      url: ''
+    };
     let sectors = [];
     let symbolMapping = {};
 
@@ -354,9 +359,9 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
     try {
       scraperConfiguration = {
         defaultMarketPrice:
-          this.assetProfileForm.controls['scraperConfiguration'].controls[
+          (this.assetProfileForm.controls['scraperConfiguration'].controls[
             'defaultMarketPrice'
-          ].value,
+          ].value as number) || undefined,
         headers: JSON.parse(
           this.assetProfileForm.controls['scraperConfiguration'].controls[
             'headers'
@@ -365,10 +370,10 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
         locale:
           this.assetProfileForm.controls['scraperConfiguration'].controls[
             'locale'
-          ].value,
+          ].value || undefined,
         mode: this.assetProfileForm.controls['scraperConfiguration'].controls[
           'mode'
-        ].value,
+        ].value as ScraperConfiguration['mode'],
         selector:
           this.assetProfileForm.controls['scraperConfiguration'].controls[
             'selector'
@@ -377,6 +382,10 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
           'url'
         ].value
       };
+
+      if (!scraperConfiguration.selector || !scraperConfiguration.url) {
+        scraperConfiguration = undefined;
+      }
     } catch {}
 
     try {
@@ -391,7 +400,6 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
 
     const assetProfile: UpdateAssetProfileDto = {
       countries,
-      scraperConfiguration,
       sectors,
       symbolMapping,
       assetClass: this.assetProfileForm.get('assetClass').value,
@@ -400,6 +408,8 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
       currency: this.assetProfileForm.get('currency').value,
       isActive: this.assetProfileForm.get('isActive').value,
       name: this.assetProfileForm.get('name').value,
+      scraperConfiguration:
+        scraperConfiguration as unknown as Prisma.InputJsonObject,
       url: this.assetProfileForm.get('url').value || null
     };
 
@@ -493,11 +503,10 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
     this.adminService
       .testMarketData({
         dataSource: this.data.dataSource,
-        scraperConfiguration: JSON.stringify({
-          defaultMarketPrice:
-            this.assetProfileForm.controls['scraperConfiguration'].controls[
-              'defaultMarketPrice'
-            ].value,
+        scraperConfiguration: {
+          defaultMarketPrice: this.assetProfileForm.controls[
+            'scraperConfiguration'
+          ].controls['defaultMarketPrice'].value as number,
           headers: JSON.parse(
             this.assetProfileForm.controls['scraperConfiguration'].controls[
               'headers'
@@ -506,7 +515,7 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
           locale:
             this.assetProfileForm.controls['scraperConfiguration'].controls[
               'locale'
-            ].value,
+            ].value || undefined,
           mode: this.assetProfileForm.controls['scraperConfiguration'].controls[
             'mode'
           ].value,
@@ -517,7 +526,7 @@ export class AssetProfileDialog implements OnDestroy, OnInit {
           url: this.assetProfileForm.controls['scraperConfiguration'].controls[
             'url'
           ].value
-        }),
+        },
         symbol: this.data.symbol
       })
       .pipe(