How to resolve (RPC_E_SERVERFAULT)) Server Error?

Question

Dear Sir,

 I am doing Payment Gateway Integration on my system
so for that I have registered one dll on my system.
Payment Gateway Integration is working properly on my system.

Now we have uploaded it on live server but it throw one execption.

 Execption is:-

 The Server threw an execption (Exception from HRESULT: 0x80010105 (RPC_E_SERVERFAULT)) 

 It may be due to missing file or any other reason.

Please suggest me. 

Thanks.

Sukhjeevan Singh