I have an ASP.NET MVC solution with multiple project under it, it works fine locally after uploading the site on the server I get the System.Reflection.ReflectionTypeLoadException error

I am also trying to run the solution on IIS and the error I am getting is Not Found The requested URL / was not found on this server.
I have also copied all the DLL to the output folder, what could be the issue is the problem most likely from a missing DLL, is it from the remote hosting security level or am I missing something else in the project please advise.

After calling the hostgator (where the site is hosted) and addressing the issue, I was told that custom DLL is not allowed in our hosting as you may see I have taken screenshots of the DLLs I wonder what are the customs DLL in my project as hostgator technician put it