About Cloud server error

I already upload my project to a cloud server. I have other modules working correctly but when I go to the report part below, the following error occurs:

Machine : WEBUKDC01
User : 
Session : 
Page : http://webtest8.travelcenter.uk/management/enquiry_mngAJS/loadDropdowns/all_groups
Event Datetime : 3/12/2018 7:20:54 AM
System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {4DB2E2BB-78E6-4AEA-BEFB-FDAAB610FD1B} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)). at CrystalDecisions.CrystalReports.Engine.ReportDocument..cctor() 

Can someone please help me solve it?