Error: Object reference not set to an instance of an object at CodemeterApp.Units.CodemeterApp.AccessCodeMeterLicense When starting Diamonds, you get the following error: Solution Reinstall Codemeter Control Center. Was this article helpful? Yes No Related Articles Error: Unexpected end of file Error: Failed to load ini files (” is not a valid integer value) Error: Object reference not set to an instance of an object at CodemeterApp.Units.CodemeterApp.AccessCodeMeterLicence(…) Error: Invalid class at System.Management.ManagementException.ThrowWithExtendedInfo(…) Error: Language number is invalid : 0 (1 – 15) Error: Problem in TMaterial.ReadFromXMLDoc. The requested value CE21 is not found