There should be folder "tables" and a xml file "db_xmlmap.xml" in the location mentioned in the error. You might get this error if these files are missing.
C:\ProgramData\HP\ALM\repository\sa\DomsInfo\MaintenanceData\SchemaXMLs\QC10.00
C:\ProgramData\HP\ALM\repository\sa\DomsInfo\MaintenanceData\SchemaXMLs\QC10.00