diff --git a/src/Plugins/BotSharp.Plugin.KnowledgeBase/Services/KnowledgeService.Get.cs b/src/Plugins/BotSharp.Plugin.KnowledgeBase/Services/KnowledgeService.Get.cs
index d8c64cf3..75824707 100644
--- a/src/Plugins/BotSharp.Plugin.KnowledgeBase/Services/KnowledgeService.Get.cs
+++ b/src/Plugins/BotSharp.Plugin.KnowledgeBase/Services/KnowledgeService.Get.cs
@@ -32,20 +32,28 @@ public partial class KnowledgeService
 
     public async Task<IEnumerable<KnowledgeRetrievalResult>> SearchKnowledge(string collectionName, KnowledgeRetrievalOptions options)
     {
-        var textEmbedding = GetTextEmbedding();
-        var vector = await textEmbedding.GetVectorAsync(options.Text);
-
-        // Vector search
-        var db = GetVectorDb();
-        var fields = !options.Fields.IsNullOrEmpty() ? options.Fields : new List<string> { KnowledgePayloadName.Text, KnowledgePayloadName.Answer };
-        var found = await db.Search(collectionName, vector, fields, limit: options.Limit ?? 5, confidence: options.Confidence ?? 0.5f, withVector: options.WithVector);
-
-        var results = found.Select(x => new KnowledgeRetrievalResult
+        try
         {
-            Data = x.Data,
-            Score = x.Score,
-            Vector = x.Vector
-        }).ToList();
-        return results;
+            var textEmbedding = GetTextEmbedding();
+            var vector = await textEmbedding.GetVectorAsync(options.Text);
+
+            // Vector search
+            var db = GetVectorDb();
+            var fields = !options.Fields.IsNullOrEmpty() ? options.Fields : new List<string> { KnowledgePayloadName.Text, KnowledgePayloadName.Answer };
+            var found = await db.Search(collectionName, vector, fields, limit: options.Limit ?? 5, confidence: options.Confidence ?? 0.5f, withVector: options.WithVector);
+
+            var results = found.Select(x => new KnowledgeRetrievalResult
+            {
+                Data = x.Data,
+                Score = x.Score,
+                Vector = x.Vector
+            }).ToList();
+            return results;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning($"Error when searching knowledge ({collectionName}). {ex.Message}\r\n{ex.InnerException}");
+            return new List<KnowledgeRetrievalResult>();
+        }
     }
 }