Error Loading Regatta

System.ArgumentNullException: Value cannot be null. (Parameter 'entity') at Microsoft.EntityFrameworkCore.Utilities.Check.NotNull[T](T value, String parameterName) at Microsoft.EntityFrameworkCore.DbContext.Entry[TEntity](TEntity entity) at EscoraWeb.Data.CRegattaService.GetRegattaAsync(String IdRegatta, Boolean Log, String Url) in C:\Prog\EscoraWeb\Data\CRegattaService.cs:line 114 at EscoraWeb.Areas.Regattas.Panel.Panel.OnInitializedAsync() in C:\Prog\EscoraWeb\Areas\Regattas\Panel\Panel.razor.cs:line 38

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