Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: Object must implement IConvertible.

Source Error: 

Line 20:         public ActionResult Index()
Line 21:         {
Line 22:             var feeds = (from f in _db.AlertRules.Include("AlertRuleOutages")
Line 23:                          select f).ToList();
Line 24:

Stack Trace: 

[InvalidCastException: Object must implement IConvertible.]
   System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) +9508841
   MySql.Data.Entity.EFMySqlDataReader.ChangeType(Object sourceValue, Type targetType) +376
   MySql.Data.Entity.EFMySqlDataReader.GetValue(Int32 ordinal) +129
   System.Data.Common.Internal.Materialization.ErrorHandlingValueReader`1.GetValue(DbDataReader reader, Int32 ordinal) +215
   lambda_method(Closure , Shaper ) +468
   System.Data.Common.Internal.Materialization.Shaper.HandleEntityAppendOnly(Func`2 constructEntityDelegate, EntityKey entityKey, EntitySet entitySet) +218
   lambda_method(Closure , Shaper ) +218
   System.Data.Common.Internal.Materialization.Coordinator`1.ReadNextElement(Shaper shaper) +170
   System.Data.Common.Internal.Materialization.RowNestedResultEnumerator.MoveNext() +235
   System.Data.Common.Internal.Materialization.ObjectQueryNestedEnumerator.TryReadToNextElement() +16
   System.Data.Common.Internal.Materialization.ObjectQueryNestedEnumerator.MoveNext() +57
   System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +327
   System.Linq.Enumerable.ToList(IEnumerable`1 source) +58

DataBase DDL:

CREATE TABLE alertruleoutage
(
Id        INT NOT NULL auto_increment,
RuleId    INT NOT NULL,
StartTime TIME NULL DEFAULT 00:
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