System.InvalidOperationException: Sequence contains more than one element
<br />   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
<br />   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
<br />   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
<br />   at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
<br />   at Tbone.Library.Data.CommonDao`1.GetEntity[TEntity](Expression`1 filter) in C:\sites\Tbone.Library\dev\appv1\Tbone.Library\Data\CommonDao.cs:line 200
<br />   at Tbone.Library.Data.EntityDao`2.GetEntity(Expression`1 filter) in C:\sites\Tbone.Library\dev\appv1\Tbone.Library\Data\EntityDao.cs:line 74
<br />   at JustCutsLibrary.Services.CmsService.GetSalonIdFromName(String salonName) in C:\sites\JustCuts\dev\app\JustCutsLibrary\Services\CmsService.cs:line 1597
<br />   at JustCutsWebsiteV2.salonlocator.store.Page_Load(Object sender, EventArgs e) in C:\sites\JustCuts\dev\app\JustCutsWeb\salonlocator\store.aspx.cs:line 80
<br />   at System.Web.UI.Control.OnLoad(EventArgs e)
<br />   at System.Web.UI.Control.LoadRecursive()
<br />   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)