diff --git a/backend/internal/handler/admin/account_handler.go b/backend/internal/handler/admin/account_handler.go
index eb9c370d7f..bfa46de05b 100644
--- a/backend/internal/handler/admin/account_handler.go
+++ b/backend/internal/handler/admin/account_handler.go
@@ -8,6 +8,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"log/slog"
 	"net/http"
 	"strconv"
 	"strings"
@@ -369,7 +370,19 @@ func (h *AccountHandler) List(c *gin.Context) {
 			}
 		}
 		if len(accountGroups) > 0 {
-			affinityClients, _ = h.gatewayCache.GetAccountAffinityClientsBatch(c.Request.Context(), accountGroups, service.ClientAffinityTTL)
+			var affinityErr error
+			affinityClients, affinityErr = h.gatewayCache.GetAccountAffinityClientsBatch(c.Request.Context(), accountGroups, service.ClientAffinityTTL)
+			if affinityErr != nil {
+				slog.Error("GetAccountAffinityClientsBatch failed",
+					"error", affinityErr,
+					"account_count", len(accountGroups),
+				)
+			} else {
+				slog.Info("GetAccountAffinityClientsBatch success",
+					"account_count", len(accountGroups),
+					"result_count", len(affinityClients),
+				)
+			}
 		}
 	}