diff --git a/common/services/ASC.AuditTrail/AuditEventsRepository.cs b/common/services/ASC.AuditTrail/AuditEventsRepository.cs
index 00727d4ced..ca9c60a4fe 100644
--- a/common/services/ASC.AuditTrail/AuditEventsRepository.cs
+++ b/common/services/ASC.AuditTrail/AuditEventsRepository.cs
@@ -86,7 +86,7 @@ namespace ASC.AuditTrail
 
             if (fromDate.HasValue && to.HasValue)
             {
-                query = query.Where(q => q.AuditEvent.Date >= fromDate & q.AuditEvent.Date <= to);
+                query = query.Where(q => q.AuditEvent.Date >= fromDate && q.AuditEvent.Date <= to);
             }
 
             if (limit.HasValue)
diff --git a/common/services/ASC.AuditTrail/LoginEventsRepository.cs b/common/services/ASC.AuditTrail/LoginEventsRepository.cs
index 78b913da76..a364647bfb 100644
--- a/common/services/ASC.AuditTrail/LoginEventsRepository.cs
+++ b/common/services/ASC.AuditTrail/LoginEventsRepository.cs
@@ -101,7 +101,7 @@ namespace ASC.AuditTrail.Data
 
             if (from.HasValue && to.HasValue)
             {
-                query = query.Where(l => l.Date >= from & l.Date <= to);
+                query = query.Where(l => l.Date >= from && l.Date <= to);
             }
 
             return query.Count();
diff --git a/products/ASC.Files/Core/Configuration/FilesSpaceUsageStatManager.cs b/products/ASC.Files/Core/Configuration/FilesSpaceUsageStatManager.cs
index 8a357e95d5..ef33da3615 100644
--- a/products/ASC.Files/Core/Configuration/FilesSpaceUsageStatManager.cs
+++ b/products/ASC.Files/Core/Configuration/FilesSpaceUsageStatManager.cs
@@ -83,7 +83,7 @@ namespace ASC.Web.Files
                 .Join(FilesDbContext.BunchObjects, a => a.tree.ParentId.ToString(), b => b.LeftNode, (fileTree, bunch) => new { fileTree.file, fileTree.tree, bunch })
                 .Where(r => r.file.TenantId == r.bunch.TenantId)
                 .Where(r => r.file.TenantId == TenantManager.GetCurrentTenant().TenantId)
-                .Where(r => r.bunch.RightNode.StartsWith("files/my/") | r.bunch.RightNode.StartsWith("files/trash/"))
+                .Where(r => r.bunch.RightNode.StartsWith("files/my/") || r.bunch.RightNode.StartsWith("files/trash/"))
                 .GroupBy(r => r.file.CreateBy)
                 .Select(r => new { CreateBy = r.Key, Size = r.Sum(a => a.file.ContentLength) });