Allora sono riuscito a pubblicare il sito web sul server e mi ha aggiunto questo file PrecompiledApp.config ed in più la directory BIN con la App_Web_sm40mgpp.dll.

Richiamando la pagina aspx dalla nuova cartella sul server l'errore rimane:

Server Error in '/' Application.
--------------------------------------------------------------------------------

Error HRESULT E_FAIL has been returned from a call to a COM component.
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.Runtime.InteropServices.COMException: Error HRESULT E_FAIL has been returned from a call to a COM component.