function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation

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C#

I am getting this error at foreach loop "function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation." and getting system.out memory exception
in the following code

int BookingProductFeeID = GlobalBo.BookingPeoductfee.SelectAll().Where(c => c.BookingID == BookingID).First().BookingProductFeeID;
var BookingItems = GlobalBo.BookingItems.SelectAll().Where(c => c.BookingProductFeeID == BookingProductFeeID && c.DriverExperienceID.HasValue);
foreach (BookingItem c in BookingItems)