Unable to run the RequestReduce in Medium Trust Shared hosting environment

[smartabbas]

I have my site on shared hosting, where i have implemented the RequestReduce however it throws me below error:
Inheritance security rules violated while overriding member: 'StructureMap.StructureMapException.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)'. Security accessibility of the overriding method must match the security accessibility of the method being overriden.
Not sure what could be causing this, any help would be appreciated.
Note :- Site is running under Medium Trust.