Cleanup .net warnings

WebAPI/dataProcessors/t3.SourceYearSummary.processor.cs

@@ -1,4 +1,4 @@
-using DiunaBIWebAPI.dataProcessors;
+using DiunaBIWebAPI.dataProcessors;
 using Google.Apis.Sheets.v4;
 using Microsoft.EntityFrameworkCore;
 using WebAPI.Controllers;
@@ -67,7 +67,7 @@ namespace WebAPI.dataProcessors
                 Layer? dataSource = db.Layers.Where(x =>
                     x.Type == LayerType.processed
                     && !x.IsDeleted
-                    && x.Name.Contains($"{year}/{i}-{source}-T3"))
+                    && x.Name!=null && x.Name.Contains($"{year}/{i}-{source}-T3"))
                     .Include(x => x.Records)
                     .FirstOrDefault();
                 if (dataSource != null)