Details:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at lambda_method(Closure ) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Delegate.DynamicInvokeImpl(Object[] args) at System.Data.Linq.CommonDataServices.GetKeyFromPredicate(MetaType type, Dictionary`2 keys, Expression mex, Expression vex) at System.Data.Linq.CommonDataServices.GetKeysFromPredicate(MetaType type, Dictionary`2 keys, Expression expr) at System.Data.Linq.CommonDataServices.GetKeyValues(MetaType type, LambdaExpression predicate) at System.Data.Linq.CommonDataServices.GetCachedObject(Expression query) at System.Data.Linq.SqlClient.SqlProvider.GetCachedResult(Expression query) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression expression) at SquashResults.Public.ClubPage.get_Club() in C:\Users\Ian\Documents\Projects\Squash\Leicestershire2024\Core\Public\Club.aspx.cs:line 24 at SquashResults.Public.ClubPage.Page_Load(Object sender, EventArgs e) in C:\Users\Ian\Documents\Projects\Squash\Leicestershire2024\Core\Public\Club.aspx.cs:line 53 at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)