diff --git a/src/main/java/auctiora/DatabaseService.java b/src/main/java/auctiora/DatabaseService.java
index eb2eff6..91ddd8b 100644
--- a/src/main/java/auctiora/DatabaseService.java
+++ b/src/main/java/auctiora/DatabaseService.java
@@ -864,9 +864,13 @@ public class DatabaseService {
       try (var conn = DriverManager.getConnection(url); var stmt = conn.createStatement()) {
          var rs = stmt.executeQuery(sql);
          while (rs.next()) {
+            // Extract numeric lot ID from TEXT field (e.g., "A1-34732-49" -> 3473249)
+            String lotIdStr = rs.getString("lot_id");
+            long lotId = ScraperDataAdapter.extractNumericId(lotIdStr);
+
             images.add(new ImageDetectionRecord(
                     rs.getInt("id"),
-                    rs.getLong("lot_id"),
+                    lotId,
                     rs.getString("local_path")
             ));
          }
diff --git a/src/main/java/auctiora/TroostwijkGraphQLClient.java b/src/main/java/auctiora/TroostwijkGraphQLClient.java
index 7ea9b0b..59e8c0f 100644
--- a/src/main/java/auctiora/TroostwijkGraphQLClient.java
+++ b/src/main/java/auctiora/TroostwijkGraphQLClient.java
@@ -23,7 +23,9 @@ import java.util.List;
 @ApplicationScoped
 public class TroostwijkGraphQLClient {
 
-    private static final String GRAPHQL_ENDPOINT = "https://www.troostwijk.com/graphql";
+    private static final String GRAPHQL_ENDPOINT = "https://storefront.tbauctions.com/storefront/graphql";
+    private static final String LOCALE = "nl";
+    private static final String PLATFORM = "TWK";
     private static final ObjectMapper objectMapper = new ObjectMapper();
 
     @Inject
@@ -37,12 +39,19 @@ public class TroostwijkGraphQLClient {
     public LotIntelligence fetchLotIntelligence(long lotId) {
         try {
             String query = buildLotQuery(lotId);
-            String requestBody = String.format("{\"query\":\"%s\"}",
-                escapeJson(query));
+            String variables = buildVariables(lotId);
+
+            // Proper GraphQL request format with query and variables
+            String requestBody = String.format(
+                "{\"query\":\"%s\",\"variables\":%s}",
+                escapeJson(query),
+                variables
+            );
 
             var request = java.net.http.HttpRequest.newBuilder()
                 .uri(java.net.URI.create(GRAPHQL_ENDPOINT))
                 .header("Content-Type", "application/json")
+                .header("Accept", "application/json")
                 .POST(java.net.http.HttpRequest.BodyPublishers.ofString(requestBody))
                 .build();
 
@@ -56,6 +65,7 @@ public class TroostwijkGraphQLClient {
                 return null;
             }
 
+            log.debug("GraphQL response for lot {}: {}", lotId, response.body().substring(0, Math.min(200, response.body().length())));
             return parseLotIntelligence(response.body(), lotId);
 
         } catch (Exception e) {
@@ -105,36 +115,34 @@ public class TroostwijkGraphQLClient {
     }
 
     private String buildLotQuery(long lotId) {
+        // TBAuctions API uses lot objects with specific fields
+        // Note: This query structure needs to be adjusted based on actual TBAuctions schema
         return """
-            query {
-              lot(id: %d) {
+            query GetLot($lotId: String!, $locale: String!, $platform: Platform!) {
+              lot(id: $lotId, locale: $locale, platform: $platform) {
                 id
+                displayId
                 followersCount
-                estimatedMin
-                estimatedMax
+                currentBidInCents
                 nextBidStepInCents
                 condition
-                categoryPath
-                city
-                countryCode
+                description
                 biddingStatus
-                appearance
-                packaging
-                quantity
-                vat
-                buyerPremiumPercentage
-                remarks
-                startingBid
-                reservePrice
-                reserveMet
-                bidIncrement
+                buyerPremium
                 viewCount
-                firstBidTime
-                lastBidTime
-                bidsCount
               }
             }
-            """.formatted(lotId).replaceAll("\\s+", " ");
+            """.replaceAll("\\s+", " ");
+    }
+
+    private String buildVariables(long lotId) {
+        return String.format("""
+            {
+              "lotId": "%d",
+              "locale": "%s",
+              "platform": "%s"
+            }
+            """, lotId, LOCALE, PLATFORM).replaceAll("\\s+", " ");
     }
 
     private String buildBatchLotQuery(List<Long> lotIds) {
@@ -167,6 +175,12 @@ public class TroostwijkGraphQLClient {
 
     private LotIntelligence parseLotIntelligence(String json, long lotId) {
         try {
+            // Check if response is HTML (error page) instead of JSON
+            if (json != null && json.trim().startsWith("<")) {
+                log.debug("GraphQL API returned HTML instead of JSON - likely auth required or wrong endpoint");
+                return null;
+            }
+
             JsonNode root = objectMapper.readTree(json);
             JsonNode lotNode = root.path("data").path("lot");