diff --git a/products/ASC.Files/Core/Configuration/ProductEntryPoint.cs b/products/ASC.Files/Core/Configuration/ProductEntryPoint.cs
index b6c8a41ae72..777300a2b7d 100644
--- a/products/ASC.Files/Core/Configuration/ProductEntryPoint.cs
+++ b/products/ASC.Files/Core/Configuration/ProductEntryPoint.cs
@@ -140,7 +140,7 @@ public string GetModuleResource(string ResourceClassTypeName, string ResourseKey
         }
     }
 
-    public override async Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant, WhatsNewType whatsNewType)
+    public override async Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant, WhatsNewType whatsNewType, ILogger logger)
     {
         IEnumerable<AuditEvent> events;
         _tenantManager.SetCurrentTenant(tenant);
@@ -203,8 +203,17 @@ public override async Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTi
                 activityInfo.FileUrl = _commonLinkUtility.GetFullAbsolutePath(_filesLinkUtility.GetFileWebEditorUrl(e.Target.GetItems().FirstOrDefault()));
             }
 
-            var obj = e.Description.LastOrDefault();
-            var additionalInfo = JsonSerializer.Deserialize<AdditionalNotificationInfo>(obj);
+            AdditionalNotificationInfo additionalInfo;
+
+            try
+            {
+                additionalInfo = JsonSerializer.Deserialize<AdditionalNotificationInfo>(e.Description.LastOrDefault());
+            }
+            catch (Exception ex)
+            {
+                logger.ErrorWithException("Error deserializing audit event: " + e.Id, ex);
+                continue;
+            }
 
             activityInfo.TargetUsers = additionalInfo.UserIds;
 
diff --git a/products/ASC.Files/Core/Core/FileStorageService.cs b/products/ASC.Files/Core/Core/FileStorageService.cs
index 1331fbdaf2e..00435a48fb7 100644
--- a/products/ASC.Files/Core/Core/FileStorageService.cs
+++ b/products/ASC.Files/Core/Core/FileStorageService.cs
@@ -1221,7 +1221,7 @@ public async Task<string> UpdateCommentAsync<T>(T fileId, int version, string co
 
         comment = await fileDao.UpdateCommentAsync(fileId, version, comment);
 
-        await _filesMessageService.SendAsync(MessageAction.FileUpdatedRevisionComment, file, file.Title, version.ToString(CultureInfo.InvariantCulture));
+        await _filesMessageService.SendAsync(MessageAction.FileUpdatedRevisionComment, file, new[] { file.Title, version.ToString(CultureInfo.InvariantCulture) });
 
         return comment;
     }
diff --git a/web/ASC.Web.Core/IProduct.cs b/web/ASC.Web.Core/IProduct.cs
index a8e06ca8f2b..bc344905180 100644
--- a/web/ASC.Web.Core/IProduct.cs
+++ b/web/ASC.Web.Core/IProduct.cs
@@ -38,5 +38,5 @@ public interface IProduct : IWebItem
 
     void Shutdown();
 
-    Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant,WhatsNewType whatsNewType);
+    Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant,WhatsNewType whatsNewType, ILogger logger);
 }
diff --git a/web/ASC.Web.Core/Notify/StudioWhatsNewNotify.cs b/web/ASC.Web.Core/Notify/StudioWhatsNewNotify.cs
index 4bbcf350069..1e35db68343 100644
--- a/web/ASC.Web.Core/Notify/StudioWhatsNewNotify.cs
+++ b/web/ASC.Web.Core/Notify/StudioWhatsNewNotify.cs
@@ -176,7 +176,7 @@ private async Task SendMsgWhatsNewAsync(int tenantid, DateTime scheduleDate, Wha
 
                 foreach (var p in products)
                 {
-                    auditEvents.AddRange(await p.GetAuditEventsAsync(scheduleDate, user.Id, tenant, whatsNewType));
+                    auditEvents.AddRange(await p.GetAuditEventsAsync(scheduleDate, user.Id, tenant, whatsNewType, _log));
                 }
 
                 _log.Debug($"SendMsgWhatsNew auditEvents count : {auditEvents.Count}");//temp
diff --git a/web/ASC.Web.Core/Product.cs b/web/ASC.Web.Core/Product.cs
index 35729477fb6..f1f14d147f5 100644
--- a/web/ASC.Web.Core/Product.cs
+++ b/web/ASC.Web.Core/Product.cs
@@ -49,7 +49,7 @@ public abstract class Product : IProduct
 
     public virtual void Shutdown() { }
 
-    public virtual Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant, WhatsNewType whatsNewType)
+    public virtual Task<IEnumerable<ActivityInfo>> GetAuditEventsAsync(DateTime scheduleDate, Guid userId, Tenant tenant, WhatsNewType whatsNewType, ILogger logger)
     {
         return Task.FromResult(Enumerable.Empty<ActivityInfo>());
     }